Mathematics, 16.10.2020 23:01 PrincessIndia
Select the correct answer.
Hair Color/Height Less than 175 cm 175 to 180 cm Above 180 cm Total
Black 28 33 29 90
Brown 37 24 19 80
Blond 21 33 26 80
Total 86 90 74 250
250 employees in an organization were surveyed about their hair color and height. The data collected is presented in the table. If a person is selected at random, what is the probability that the person is at least 175 centimeters tall?
A.
0.296
B.
0.344
C.
0.360
D.
0.656
Answers: 2
Mathematics, 21.06.2019 20:50
Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c
Answers: 3
Mathematics, 22.06.2019 02:00
Estimate the time en route from majors airport (area 1) to winnsboro airport (area 2). the wind is from 340° at 12 knots and the true airspeed is 136 knots. magnetic variation is 5° east.
Answers: 2
Mathematics, 22.06.2019 03:00
Run a linear regression to determine an equation (y=mx+b y=mx+b)
Answers: 3
Mathematics, 22.06.2019 03:40
Abottled water distributor wants to estimate the amount of water contained in 1-gallon bottles purchased from a nationally known water bottling company. the water bottling company’s specifications state that the standard deviation of the amount of water is equal to 0.02 gallon. a random sample of 50 bottles is selected, and the sample mean amount of water per 1-gallon bottle is 0.995 gallon a. construct a 99% confidence interval estimate for the popula-tion mean amount of water included in a 1-gallon bottle. b. on the basis of these results, do you think that the distributor has a right to complain to the water bottling company? why? c. must you assume that the population amount of water per bottle is normally distributed here? explain. d. construct a 95% confidence interval estimate. how does this change your answer to (b)?
Answers: 2
Select the correct answer.
Hair Color/Height Less than 175 cm 175 to 180 cm Above 180 cm Total
History, 18.05.2021 21:30
Mathematics, 18.05.2021 21:30
Biology, 18.05.2021 21:30
History, 18.05.2021 21:30
Mathematics, 18.05.2021 21:30
Mathematics, 18.05.2021 21:30
Geography, 18.05.2021 21:30
Computers and Technology, 18.05.2021 21:30
Arts, 18.05.2021 21:30