Answer:
20
Step-by-step explanation:
Step-by-step explanation:
there are actually no restrictions. even with a negative x, squaring it makes for a positive result.
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.
<span>Subtract u from 7, then divide v by the result</span>
v : (7 - u)
Answer:
B) -3.2
Step-by-step explanation:
-16/5 = -15/5 - 1/5 = -3 - 0.2 = -3.2