Answer:
a c d
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Z score = (x -mean) / standard deviation.
For this problem X = 50 cm.
Z-score = (50 - 49.2) / 1.8
Z score = 0.8 / 1.8
Z score = 0.44
Look up 0.44 on a z-score table.
0.44 = 0.6700
0.67 x 100 = 67% will be 50 cm or longer.
Answer:
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Step-by-step explanation:
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A watch decreased in price by
4
5
. After the reduction it was priced at £10. What was the original price of the watch?
I THINK IT C
I REALLY TRIED
HOPE I HELPED
