Visit your local library: On a recent Saturday, a total of 1248 people visited a local library. Of these people, 241 were una 10, 467 were aged 10-18, 157 were aged 19-30, and the rest were more than 30 years old. One person is sampled at rand (a) What is the probability that the person is less than 10 years old? (b) What is the probability that the person is more than 10 years old? Part 1 of 2 (a) What is the probability that the person is less than 10 years old? Round your answer to four decimal places. The probability that the person is less than 10 years old is Part 2 of 2 (b) What is the probability that the person is more than 10 years old? Round your answer to four decimal places. The probability that the person is more than 10 years old is

In a bag of marbles, the following represents the distributions: 11 Red, 13 Green, 10 Blue, and 11 Yellow. What is the probability of randomly selecting 3 consecutive marbles and they are all Red? After removing each marble, you replace them.

The manager of an ice cream shop decides to track the purchases of ice cream throughout the day. The data is displayed on the two-way frequency table shown. Vanilla Chocolate Total Adult 52 41 93 Child 26 105 131 Total 78 146 224 Part A: What is the probability of a customer ordering vanilla ice cream given they are an adult, or P(vanilla | adult)? Round to the nearest hundredth. [ Select] Part B: What is P(child | chocolate)? [ Select] Part C: What must be true to make the events of "the customer being a child" and "ordering chocolate ice cream" independent? [ Select ]

The National Longitudinal Study of Adolescent Health interviewed several thousand teens (grades 7 to 12). One question asked was “What do you think are the chances you will be married in the next 10 years?” Here is a two-way table of the responses by gender:   Opinion Female Male Almost no chance 120 94 Some chance but probably not 156 178 A 50-50 chance 427 498 A good chance 750 700 Almost certain 1176 770   How many individuals are described in this table? How many females were among the respondents? The percent of females among the respondents was about %. Your percent from the previous exercise is part of the marginal distribution of opinion about marriage. the conditional distribution of sex among adolescents with a given opinion. the marginal distribution of sex. What percent of females thought that they were almost certain to be married in the next 10 years?% Your percent from the previous exercise is part of the conditional distribution of sex among…

Nine percent of men and .25% of women cannot distinguish between the colors red and green. If six men are randomly selected for a study of traffic signal perceptions, find the probability that exactly two of them cannot distinguish between and red and green

Aleem tossed a coin 50 times and recorded the results in a frequency distribution table. Outcome Frequency Heads 22 Tails 28 What is the experimental probability of tossing a head?

The probability that an individual is left-handed is 12%. In a randomly selectedclass of 30 students, what is the probability of finding exactly 4 left-handedstudents?

A sample of 4 different calculators is randomly selected from a group containing 20 that are defective and 10 that have no defects. What is the probability that all four of the calculators selected are defective? Give your answer as a percent rounded to the nearest tenth of a percent.