Answer:
The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 160 degrees
Standard Deviation, σ = 5.4 degrees
We are given that the distribution of temperature of coffee is a bell shaped distribution that is a normal distribution.
Formula:
We have to find the value of x such that the probability is 0.2
Calculation the value from standard normal z table, we have,
Thus,

The 20th percentile of coffee temperature is 155.4532 degrees Fahrenheit.
Answer:
=5.68×10^5
Step-by-step explanation:
x= number of boys in the club because it is unknown.
x + 7= the number total number of girls in the club.
I'm not sure sry maybe you should of studied
Answer:
1, 2, 3, 6, 9, 18, 27, 54
Step-by-step explanation: