Answer:
Step-by-step explanation:
Since the human body temperatures are normally distributed, the formula for normal distribution is expressed as
z = (x - u)/s
Where
x = human body temperatures
u = mean body temperature
s = standard deviation
From the information given,
u = 98.20oF
s = 0.62oF
We want to find the probability that their mean body temperature will be less than 98.50oF. It is expressed as
P(x lesser than 98.50)
For x = 98.50,
z = (98.50 - 98.20)/0.62 = 0.48
Looking at the normal distribution table, the corresponding probability to the z score is 0.6844
P(x lesser than 98.50) = 0.6844
