Pls help me, first right-brainliest:)))))
2 answers:
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Answer:
Step-by-step explanation:
Given that Heights of 10-year-olds, regardless of gender, closely follow a normal distribution with a mean of 55 inches and a standard deviation of 6 inches.
If X is height then X is N(55,6)
Z score would be
b)
c) Tallest 10% z = 1.28
X score = inches
d)
i.e. 16.37% cannot go on this ride.
Given that: step 1
step 2: subtract 3x both side
Step 3: Add 18 both side:
Step 4: divide both side by 5
Step:6 The value of x is:
x=6