Question: Please, answer the question # 1 & #2. Thank you!! #1 According to the World Health Organization (WHO) Child Growth Standards, the head circumference for

Please, answer the question # 1 & #2. Thank you!!

According to the World Health Organization (WHO) Child Growth Standards, the head circumference for girls who are two-years old has a normal probability distribution with a mean of 47.2cm and a standard deviation of 1.4cm.

What is the head circumference of a two-year-old girl who marks the start of the 90th percentile? Enter a number without units.

Suppose that birth weights are normally distributed with a mean of 3466 grams and a standard deviation of 546 grams. Babies weighing less than 2500 grams at birth are considered "low weight."

If we randomly select a baby, what is the probability that it has a low birth weight?

0.0177 about 2%

0.0384 about 4%

0.9616 about 96%

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