In the wild, monkeys eat an average of 28 bananas a day with a standard deviation of 2 bananas. One monkey eats only 21 bananas. What is the z-score for this monkey? Is the number of bananas the monkey eats unusually low?
Using our z-score calculator, we get:
Z < -3.5
P(Z < -3.5) = 0.499767
Also, this is unusually low as it's more than 3 deviations away from the mean
Using our z-score calculator, we get:
Z < -3.5
P(Z < -3.5) = 0.499767
Also, this is unusually low as it's more than 3 deviations away from the mean