[1] We believe that Michael Corda was an invitee on the premises of Brook Valley Enterprises, Inc. at the time he allegedly drowned and the lifeguard owed him the duty to exercise the care that a reasonably prudent person who was serving as a lifeguard at the Brook Valley Country Club at the time would have exercised. See Clark v. Roberts, 263 N.C. 336, 139 S.E. 2d 593 (1965). We believe a reasonably prudent person acting as a lifeguard would have observed the pool for swimmers in distress and would have been alert to aid swimmers in distress. We hold that there was sufficient evidence for a jury to find (but not compel them to find) that the defendant Roberson did not observe the pool for swimmers in distress as a reasonably prudent man serving as a lifeguard would have done when he left his lifeguard station and went to fold up the chairs and umbrellas. We also believe it was a jury question as to whether the corporate defendant acted as a reasonable man operating a swimming pool would have acted in not having two lifeguards on duty when the lifeguard was responsible for maintaining the area around the pool. For these reasons, we hold it was error to grant the defendants’ motion for directed verdict.
The defendants argue that under Manganello v. Permastone, Inc., 291 N.C. 666, 231 S.E. 2d 678 (1977) they were responsible *656not only for the safety of the swimming pool but for the surrounding area and it was not negligent for Mr. Roberson to leave the lifeguard stand to secure the chairs and umbrellas when it appeared there would be a storm. As we have said, we believe it is a jury question as to the responsibility of the defendants for the safety of the surrounding area, whether the corporate defendant provided adequate personnel to meet its responsibilities, and whether Mr. Roberson acted as a reasonable man in leaving the lifeguard stand under the circumstances then existing.
There was some evidence that Mr. Corda died as the result of cardiac arrest. Defendants argue that if this was the case, the fact that he was not sooner removed from the pool would not be a proximate cause of his death. We believe this is a question for the jury. There was also some evidence that Mr. Corda died from a dry drowning. The evidence showed that in a dry drowning, as distinguished from a wet drowning, there is a laryngospasm which causes an obstruction in the voice box which prevents water and air from entering the lungs. The defendants contend that if there was a dry drowning, mouth-to-mouth resuscitation would have been ineffective and the failure to remove Mr. Corda from the pool would not have been a proximate cause of his death. We believe this should be decided by the jury.
[2] The plaintiff makes other assignments of error which we shall discuss because the questions raised may recur at a new trial. The plaintiff assigns error to the exclusion of her testimony as to statements she made to the defendant Roberson. Plaintiff would have testified if allowed to do so that Mr. Roberson told her sometime after the accident (1) “He couldn’t blame me if I sued Brook Valley Country Club because of the drowning and that he would probably do the same thing himself’; (2) “He felt two lifeguards were needed on the day my husband drowned because of the large number of people using the pool”; (3) “Troy stated that he had asked Mr. Thomas many times for a private phone but Mr. Thomas never agreed to get one”; and (4) “Troy also stated that he had been asking Mr. Thomas for about three years for a board to use in case of spinal injury but never got one.”
This testimony was not admissible against the corporate defendant. It was not made by an agent of the corporation as it *657concerned an act then being done in his representative capacity. It was narrative of a past occurrence. See Pearce v. Telegraph Co., 299 N.C. 64, 261 S.E. 2d 176 (1980). It may be an admission against the defendant Troy Roberson but it is not relevant to any of the acts of negligence alleged against him. It could be very prejudicial to the corporate defendant even with a limiting instruction. We hold it was properly excluded.
[3] The plaintiff contends it was error for the court to exclude the answers to interrogatories addressed to the president of the corporate defendant. These interrogatories dealt with the number of persons who were swimming in the pool at the time of the accident and the names and addresses of witnesses to the accident. The president was not at the pool at the time of the accident. He answered the interrogatories on information and belief. Clearly he did not have personal knowledge of the matters contained in his answers. This evidence was properly excluded.
[4] The plaintiff assigns error to the exclusion of certain testimony from Dr. Lawrence Harris, the pathologist who performed the autopsy on Michael Corda. During the direct examination of Dr. Harris the following colloquy occurred:
“Q. Dr. Harris, if a lifeguard had gotten to Mr. Corda within one minute of the beginning of the inhalation of water, in your opinion could there have been a successful resuscitation of Mr. Corda?
Mr. Dilthey: Objection.
Court: Overruled.
A. Yes. I think it’s possible.
Mr. Dilthey: Objection and move to strike on what is possible.
Court: Well, sustained as to possible. Don’t consider that, ladies and gentlemen. Don’t consider that question and answer.”
The jury was then excused and the following colloquy occurred:
“Q. Dr. Harris, do you have an opinion satisfactory to yourself based upon a reasonable medical certainty, as to whether or not Michael Corda could have been successfully *658resuscitated had a lifeguard gotten to him within 30 seconds of the beginning of the inhalation of water?
A. Yes, I do.
Q. What is that opinion?
A. That in all probability he could have survived. Yes.”
The court refused to let the witness answer this question before the jury.
We hold it was error to exclude the testimony of Dr. Harris in answer to these two questions. We believe the rule as established by Mann v. Transportation Co., 283 N.C. 734, 198 S.E. 2d 558 (1973) and Walters v. Tire Sales and Service, 51 N.C. App. 378, 276 S.E. 2d 729 (1981) is that an expert witness may conform his answer to his true opinion. Dr. Harris was an expert. As a pathologist he was better qualified than the jury to form an opinion as to the cause of death and what might have prevented it.
The defendant, relying on Fisher v. Rogers, 251 N.C. 610, 112 S.E. 2d 76 (1960) and Garland v. Shull, 41 N.C. App. 143, 254 S.E. 2d 221 (1979) argues that the answer to the first question quoted above was properly excluded because it was sheer speculation and conjecture. These two cases dealt with expert medical testimony as to the consequences of personal injury. They hold that in testifying to the consequences of a personal injury an expert may not testify as to possibilities but only in terms of the certain or probable consequences.
We believe that in light of Mann, both answers of Dr. Harris should have been admitted on the facts of this case. When both answers are considered together, Dr. Harris’ testimony is to the effect that there is only a possibility that Mr. Corda could have been saved if the lifeguard had reached him within one minute of the time he went under water but there was a probability he could have been saved if a lifeguard had reached him within 30 seconds of the time he went under water. We believe this is testimony the jury should have in reaching its decision. If the only testimony had been as to possibility it may be that it should have been excluded pursuant to Fisher and Garland.
*659 [5] Troy Roberson testified that using a stopwatch he had repeated from six to eight times his actions at the time of the alleged drowning. He testified that he left the lifeguard station each time and folded the chairs and the umbrellas and then went to the edge of the pool. He testified that based on this experiment it was his opinion that approximately IV2 minutes elapsed from the time he left his chair until he reached the edge of the pool and saw Mr. Corda. The plaintiff contends it was error to admit this testimony. She argues that the court admitted testimony as to the results of an experiment which did not correspond in all substantial particulars with those existing at the time of the disputed event. See Green v. Wellons, Inc., 52 N.C. App. 529, 279 S.E. 2d 37 (1981). The plaintiff contends the weather conditions were not the same and there were not the same number of people in the pool. We believe these are factors which go to the weight to be given this testimony by the jury. This assignment of error is overruled.
[6] The plaintiff next assigns error to the exclusion of the emergency room report in regard to Mr. Corda. The parties stipulated to its authenticity and we believe it was error under Sims v. Insurance Co., 257 N.C. 32, 125 S.E. 2d 326 (1962) to exclude it. We believe it was harmless error as the information contained in the report was received into evidence through testimony of witnesses. We pass on this assignment of error since there must be a new trial.
[7] The plaintiff also assigns error to the testimony of the defendant Troy Roberson as to his observation of Mr. Corda at times prior to 1 August 1980 when Mr. Corda was in the swimming pool. The plaintiff contends this testimony should have been excluded under G.S. 8-51 as testimony concerning a personal transaction with the deceased. We believe Mr. Roberson’s observation of Mr. Corda while Mr. Corda was in the swimming pool was an act done while observing the deceased person and not done with the deceased person. It was not a personal transaction with the deceased. See Brown v. Whitley, 12 N.C. App. 306, 183 S.E. 2d 258 (1971). We hold this testimony was properly admitted. This assignment of error is overruled.
We do not discuss the plaintiff’s other assignments of error as the questions they raise may not recur at a new trial.
*660New trial.
Judges Arnold and Braswell concur.