Math Word Problems Demystified - A Self Teaching Guide
LESSON 22 Solving Word Problems in Probability Probability deals with chance events, such as card games, slot machines, and lott ...
The set of all possible outcomes of a probability experiment is called the sample space. Each outcome in a sample space, unless ...
STRATEGY: There are 4 outcomes in the sample space and two outcomes (HT, TH) in the event. IMPLEMENTATION:P¼(one head and one ta ...
SOLUTION: GOAL: You are being asked to find the probability of getting a sum less than 4. STRATEGY: A sum less than 4 means a su ...
IMPLEMENTATION:P(spade)¼ 13 52 ¼ 1 4 . EVALUATION: Use the sample space to verify your answer. The examples shown previously are ...
EXAMPLE:Using the same bag of candy, find the probability that a person selects a caramel or a chocolate. SOLUTION: GOAL: You ar ...
Two dice are rolled; find the probability of getting (a) a sum of 8 (b) doubles (c) a sum greater than 10 (d) a sum less than 5 ...
(b) There are six outcomes in the sample space and there are two outcomes that are greater than 4, that is, 5 and 6; hence, P(a ...
(a) There are 8 outcomes in the sample space and one way to get all boys: BBB; hence,P(all boys)¼^18. (b) There are 8 outcomes i ...
23 LESSON Solving Word Problems in Statistics Statisticsis the science of conducting studies to collect, organize, analyze, summ ...
SOLUTION: GOAL: You are being asked to find the mean for the given data set. STRATEGY: Add the values and divide the sum by 5 (t ...
EXAMPLE:Find the median for 56, 82, 34, 63, 68, and 72. SOLUTION: GOAL: You are being asked to find the median for the given dat ...
SOLUTION: GOAL: You are being asked to find the mode for the given data set. STRATEGY: Analyze the data and see what value occur ...
STRATEGY: Subtract the smallest data value from the largest data value in the set. IMPLEMENTATION: The smallest data value is 8, ...
Square the answers: ð 5 Þ^2 ¼ 25 ð 3 Þ^2 ¼ 9 02 ¼ 0 32 ¼ 9 52 ¼ 25 Find the sum of the squares: 25 þ 9 þ 0 þ 9 þ 25 ¼ 68 Di ...
17, 18, 18, 25, 32 The middle value is 18; hence, the median is 18. The value which occurs most often is 18, so the mode is 18. ...
Quiz 6 A single die is rolled; the probability of getting a one is (a)^13 (b)^16 (c) 0 (d) 1 A card is selected from a deck; th ...
Find the mean of 8, 24, 15, 19, 32, and 10. (a) 16 (b) 17 (c) 20 (d) 18 Find the median of 6, 10, 13, 7, and 20. (a) 10 (b) 11. ...
Final Exam The height of St. Helen’s volcano is 8363 feet, and the height of the Augustine volcano is 3999 feet. How much highe ...
(b) $450 (c) $750 (d) $900 How many boxes are needed to package 500 calculators if 20 calculators can fit in a box? (a) 520 (b) ...
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