Question

Here is the five-number summary of 116 weights of babies at birth measured in grams: 2319, 3394, 3721, 4051, 4849

Approximately, how many of these babies weigh less than 4501g? Approximately, how many of these babies weigh between 3394 g and 3721 g? Approximately, how many of these babies weigh between 3394 g and 4051 g?

Answer 1

0th percentile = 2319

25th percentile = 3394

50th percentile = 3721

75th percentile = 4051

100th percentile = 4849

Sample size = 116

Percentage of babies weigh less than 4501g = 75%

Number of babies that weigh less than 4501g = 0.75x4501

= 3,375.75

Percentage of babies weigh between 3394g and 3721g = 50 - 25 = 25%

Number of babies weigh between 3394g and 3721g = 0.25x4501

= 1,125.25

Percentage of babies weigh between 3394g and 4051g = 75 - 25 = 50%

Number of babies weigh between 3394g and 3721g = 0.50x4501

= 2,250.5

answered by: anonymous