subject
Mathematics, 25.03.2021 21:00 brien301

EASY 100 POINTS! The distribution of the number of children per family in the United States is strongly skewed right with a mean of 2.5 children per family and a standard deviation of 1.3 children per family.

a) Without doing any calculations, which event is more likely? Explain.
Event A: Randomly selecting a family from the United States that has 3 or more children.
Event B: Randomly selecting 40 families from the United States and finding an average of 3 or more children.

b) The probability of one of the two events listed in part (a) can be calculated even though the distribution of the population is strongly skewed right. For which event can the probability be calculated? Explain.

c) Calculate the probability of the event that you selected in part (b).

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 16:00, ctyrector
Asap for seven months an ice creams vendor collects data showing the number of cones sold a day (c) and the degrees above 70 degrees f the vendor finds that there is a positive linear association between c and t that is the best modeled by this equation c=3.7t+98 which statement is true? the model predicts that the average number of cones sold in a day is 3.7 the model predicts that the average number of cones sold i a day is 98 a model predicts that for each additional degree that the high temperature is above 70 degres f the total of number of cones sold increases by 3.7 the model predicts for each additional degree that the high temperature is above 70 degrees f the total number of cones sold increasingly by 98
Answers: 3
image
Mathematics, 21.06.2019 20:00, suselygonza
Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.
Answers: 1
image
Mathematics, 21.06.2019 21:00, AliMe52
How to write four times a number, minus 6,is equal to theee times the number+8 as an equqtion
Answers: 2
image
Mathematics, 21.06.2019 22:10, miyayo
Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.
Answers: 3
You know the right answer?
EASY 100 POINTS! The distribution of the number of children per family in the United States is stro...

Questions in other subjects:

Konu
Mathematics, 11.03.2021 07:10
Konu
Mathematics, 11.03.2021 07:10
Konu
Social Studies, 11.03.2021 07:10