I think it may be c but correct me if I’m wrong sorry though at least I tried
Answer:
a) Mean=0 and Standard deviation=1
b) The z-scores have no units of measurement
Step-by-step explanation:
When we convert all the pulse rates of women to z-scores using the formula;
the mean is 0 and the standard deviation is 1.
The reason is that, the resulting distribution of z-scores forms a normal distribution which has a mean of 0 and a standard deviation of 1.
b) The z-scores are standardize scores and has no units of measurement. They give us how many standard deviations below or above the mean of the corresponding values.
Answer:
Step-by-step explanation:
x + (x+30) + (2x) = 180
4x = 150
x = 37.5°
x+30 = 67.5°
2x = 75°
Answer:
8^4 8 to the fourth power
Step-by-step explanation:
Answer:
Option 2
Step-by-step explanation:
First distribute 5r to 2r and 4 to get 10r^2+20r
Then distribute 8 to 2r and 4 to get 16r+32
After that you combine the like terms, so combine 20r and 16r to get 36r
Since there aren't other like terms for 10^2 and 32 you leave them how they are
After you combine your like terms you write the terms in order to get 10r^2+36r+32
Hope this helped!
