Answer:
9y
Step-by-step explanation:
Mathematicaly, the product of 9 and a number "y" is:
9y
The mean is 17.
U put the values in order which they already are and then u add them all up and divide by home many numbers there are in the data set
10+12+15+18+30/5
Answer:
Therefore the shortest man of 65.6 cm was more extreme.
Step-by-step explanation:
A z-test is a statistic test. It is used to determine whether two population mean are different when the variances of the population are known and the sample size large.
z= the standarized z score
x = the height of sample
μ = mean = 172.27 cm
σ = standard deviation = 8.82 cm
For tallest
x = 259
≈9.83
For shortest
x= 65.6
≈ - 12.09
The most extreme value has a z score that the furthest from 0.
Since -12.09 is further from 0 than 9.83.
Therefore the shortest man of 65.6 cm was more extreme.