Answer: B. 12.7
Step-by-step explanation:
Answer:
The standard deviation is 6
Step-by-step explanation:
The scores of a given test were normally distributed with a mean of 82.

James received a 67 with a z-score of -2.5
Z score = -2.5

Formula :



Hence The standard deviation is 6
Answer:
what is the question I don't see it
61
Step-by-step explanation:
good luck with the answer
Answer:Isolate the variable by dividing each side by factors that don't contain the variable.
d=−5
Step-by-step explanation: