the height measurements of ten-year-old children are approximately normally distributed with a mean of 54.1 inches, and standard deviation of 2.7 inches. A) What is the probability that a randomly chosen child has a height of less than 51.85 inches?

Respuesta :

Answer:

The probability that a randomly chosen child has a height of less than 51.85 inches is 0.2033

Step-by-step explanation:

Mean = 54.1 inches

Standard deviation = 2.7 inches

We are supposed to find the probability that a randomly chosen child has a height of less than 51.85 inches

P(x<51.85)

Formula : [tex]Z=\frac{x-\mu}{\sigma}[/tex]

Substitute the values in the formula :

[tex]Z=\frac{x-\mu}{\sigma}[/tex]

[tex]Z=\frac{51.85-54.1 }{2.7}[/tex]

[tex]Z=-0.83[/tex]

Refer the z table for p value

p value = 0.2033

Hence the probability that a randomly chosen child has a height of less than 51.85 inches is 0.2033