Question

The percent distribution of live​ multiple-delivery births​ (three or more​ babies) in a particular year for women 15 to 54 years old is shown in the pie chart. Find each probability. A pie chart labeled "Number of Multiple Births" is divided into seven sectors with labels and approximate sizes as a percentage of a circle as follows: 15-19, 1.4 percent; 20-24, 6.3 percent; 25-29, 21.4 percent; 30-34, 37.5 percent; 35-39, 24.8 percent; 40-44, 5.3 percent; 45-54, 3.3 percent. Number of Multiple Births 15-19 1.4% 20-24 6.3% 25-29 21.4% 30-34 37.5% 35-39 24.8% 40-44 5.3% 45-54 3.3% a. Randomly selecting a mother​ 30-39 years old ​P(30 to ​39)almost equals nothing ​(Round to the nearest thousandth as​ needed.)

Answer 1

Solution :

From given information ,

30-34 >> 37.5% and 35-39 >> 24.8%

a)

Randomly selecting a mother​ 30-39 years old ​P(30 to ​39) = 37.5% + 24.8% = 62.3% = 0.623

Probability = 0.623