Answer:
The probability that Terry buys a sandwich and gets the bus is 0.36
Step-by-step explanation:
When two events are called independent, it means that the happening of one event doesn't affect the happening of other event.
Let A be the event that Terry buys a sandwich
Let B be the event that Terry gets the bus
Then

When two events are independent, their probabilities are multiplied i.e.

Hence,
The probability that Terry buys a sandwich and gets the bus is 0.36
The critical values of z= -2.575 and z= 2.575
the formula z= x bar- u/sigma / square root of n
but in general, we state a hypothesis.
then compare the results to determine which hypothesis is most likely
you seem to have the right idea that its a 2 tailed test of equality.
± 2.575 = x− μ σ / √n
CI : x ± 2.575 (σ/√n) = μ
Answer:
A
Step-by-step explanation:
Three smaller surface area = 6*3=18, while bigger = 14, so three smaller will melt faster.