subject
Mathematics, 22.11.2019 06:31 alexandroperez13

Areal estate company is interested in the ages of home buyers. they examined the ages of thousands of home buyers and found that the mean age was 48 years old, with a standard deviation of 9 years. suppose that these measures are valid for the population of all home buyers. complete the following statements about the distribution of all ages of home buyers.
(a) according to chebyshev's theorem, at least of the home buyers' ages lie between 30 years and 66.
(b) (a) according to chebyshev's theorem, at least of the home buyers' ages lie between 25.5 years and 70.5.
(c) suppose that the distribution is bell-shaped. according to the empirical rule, approximately of the home buyers' age lie between 30 years and 66.
(d) suppose that the distribution is bell-shaped. according to the empirical rule, 99.7% of the home buyers' ages lie between years and years.

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 20:30, anniekwilbourne
Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.
Answers: 3
image
Mathematics, 21.06.2019 21:30, unknowntay04
Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x
Answers: 1
image
Mathematics, 21.06.2019 23:20, hemaam8
Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?
Answers: 1
image
Mathematics, 22.06.2019 00:00, heyyyyy117
Define the type of sequence below. 7, 14, 28, 56, 112, a. neither arithmetic nor geometric b. arithmetic c. both arithmetic and geometric d. geometric
Answers: 1
You know the right answer?
Areal estate company is interested in the ages of home buyers. they examined the ages of thousands o...

Questions in other subjects:

Konu
English, 30.10.2020 07:40