Answer:
Option c. is correct
Step-by-step explanation:
The standard deviation is a measure of the amount of dispersion in a set of values.
Mean of a normal distribution (m) = 154
Standard deviation (s) = 15
z-score = 2.2
To find: value (x) that has a z-score of 2.2
z-score is given by
Put
Option c.is correct
value of above expression is 1
solution in attachment !
Answer:
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Step-by-step explanation:
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Answer:
see below
Step-by-step explanation:
m+6/3 = -8
Simplify the fraction
m+2 = -8
Subtract 2
m+2-2 = -8-2
m = -10
or
(m+6)/3 = -8
Multiply each side by 3
m+6 = -8*3
m+6 = -24
Subtract 6
m+6-6 = -24-6
m = -30