Answer: -1.33 .
Step-by-step explanation:
Formula to find the Z-score :
Given: Mean = 191 and Standard deviation = 21
Then , the z-score corresponding to the expected value of 163 will be :
Hence, the z score corresponding to selling 163 inhalers is -1.33 .
Answer:
3x-1
Step-by-step explanation:
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21/25
Change to decimal:-
Divide numerator by denominator.
21/25
21 ÷ 25 = 0.84
21/25 = 0.84
Change to a percentage:-
0.84 × 100 = 84
21/25 = 0.84 = 84%
Yes she can find the average colour by adding up all the amount of colors by how many colors there are.
