Mathematics, 23.10.2019 18:50 mohd591

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. a pollster contacts 78 people in the 18-21 age bracket and finds that 66 of them respond and 12 refuse to respond. when 269 people in the 22-29 age bracket are contacted, 250 respond and 19 refuse to respond. assume that 1 of the 347 people is randomly selected. find the probability of getting someone in the 18-21 age bracket or someone who agreed to respond.

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 17:30

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

Answers: 2

Answer

Mathematics, 21.06.2019 22:00

In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.

Answers: 3

Answer

Mathematics, 22.06.2019 02:00

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)

Answers: 1

Answer

Mathematics, 22.06.2019 02:40

Arestaurant manager wanted to get a better understanding of the tips her employees earn, so she decided to record the number of patrons her restaurant receives over the course of a week, as well as how many of those patrons left tips of at least 15%. the data she collected is in the table below. day mon tue wed thu fri sat sun patrons 126 106 103 126 153 165 137 tippers 82 87 93 68 91 83 64 which day of the week has the lowest experimental probability of patrons tipping at least 15%? a. sunday b. saturday c. friday d. thursday

Answers: 1

Answer

You know the right answer?

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. a...

Questions