Answer:
uhhhhh
Step-by-step explanation:
maybe 3? not to sure
The 90th percentile is 1.2816 standard deviations from the mean. That tells you the standard deviation is ...
... (40 in - 38 in)/(1.2816) ≈ 1.56 in
The standard deviation for height for 4-year olds seems to be 1.56 inches.
Is this a multi question ? If so
Please post full question to get full answer
Thank You :)
The answer would be a 28% decrease.
Hope that helps!!
