Final answer:
To find the average pulse rate, add up all the pulse rates and divide by the number of people. The pattern in the results shows a variation in pulse rates. Cul's pulse rate of 110 does not fit the pattern. Additional information is needed to confirm the reason for this.
Step-by-step explanation:
To find the average pulse rate of Marcus and his friends, you need to add up all their pulse rates and then divide the sum by the number of people. In this case, the sum of the pulse rates is 88 + 110 + 90 + 87 + 90 = 465. Since there are 5 people, you divide 465 by 5 to get an average pulse rate of 93 beats per minute.
The results show that the pulse rates of Marcus and his friends range from 87 to 110. This means that there is a variation in their pulse rates, with some having higher pulse rates than others.
The result that does not fit the pattern is Cul's pulse rate of 110. This is the highest pulse rate among the group and is significantly higher than the rest. One possible reason for this could be that Cul was engaging in physical activity or was experiencing some form of excitement or stress at the time of measurement.
To find out if this suggestion is correct, further information would be needed. For example, asking Cul if he was engaged in physical activity or experiencing any stress or excitement at the time of measurement.