Explain the meaning of the following percentiles in parts (a) and (b). (a) The 1

Question

Explain the meaning of the following percentiles in parts (a) and (b).

(a) The 10th percentile of the weight of males 36 months of age in a certain city is 11.0 kg.

(b) The 95th percentile of the length of newborn females in a certain city is 54.3 cm.

(a) Choose the correct answer below.

A. 10% of males weigh 11.0 kg or more, and 90% of 36-month-old males weigh less than 11.0 kg.

B. 10% of males weigh 11.0 kg or less, and 90% of 36-month-old males weigh more than 11.0 kg.

C. 10% of 36-month-old males weigh 11.0 kg or more, and 90% of 36-month-old males weigh less than 11.0 kg.

D. 10% of 36-month-old males weigh 11.0 kg or less, and 90% of 36-month-old males weigh more than 11.0 kg.

(b) Choose the correct answer below.

A. 95% of newborn females have a length of 54.3 cm or less, and 55% of newborn females have a length that is more than 54.3 cm.

B. 95% of females have a length of 54.3 cm or less, and 55% of newborn females have a length that is more than 54.3 cm.

C. 95% of newborn females have a length of 54.3 cm or more, and 55% of newborn females have a length that is less than 54.3 cm.

D. 95% of females have a length of 54.3 cm or more, and 55% of newborn females have a length that is less than 54.3 cm.

Explanation / Answer

Solution:

Answer of a) :

Option (D) is correct. That is,  10% of 36-month-old males weigh 11.0 kg or less, and 90% of 36-month-old males weigh more than 11.0 kg.

Answer of b) :

Option (A) is correct. That is, 95% of newborn females have a length of 54.3 cm or less, and 5% of newborn females have a length that is more than 54.3 cm.

Done

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