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Chapter 3: Q. 111 (page 228)
Use the following information to answer the next two exercises. The table of data obtained from www.baseball-almanac.com shows hit information for four well known baseball players. Suppose that one hit from the table is randomly selected.
a.
b.
C.
d.
Probability is,option c is correct.
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What is the probability of drawing a red card in a standard deck of cards?
Explain what is wrong with the following statements. Use complete sentences.
a. If there is a chance of rain on Saturday and chance of rain on Sunday, then there is a chance of rain over the weekend.
b. The probability that a baseball player hits a home run is greater than the probability that he gets a successful hit.
After Rob Ford, the mayor of Toronto, announced his plans to cut budget costs in late , the Forum Research polled people to measure the mayor’s popularity. Everyone polled expressed either approval or disapproval. These are the results their poll produced:
• In early percent of the population approved of Mayor Ford’s actions in office.
• In mid-percent of the population approved of his actions.
• In late , the percentage of popular approval was measured at percent.
a. What is the sample size for this study?
b. What proportion in the poll disapproved of Mayor Ford, according to the results from late ?
c. How many people polled responded that they approved of Mayor Ford in late ?
d. What is the probability that a person supported Mayor Ford, based on the data collected in mid-?
e. What is the probability that a person supported Mayor Ford, based on the data collected in early ?
A box is filled with several party favors. It contains 12
hats, 15 noisemakers, ten finger traps, and five bags of confetti.
Let H = the event of getting a hat.
Let N = the event of getting a noisemaker.
Let F = the event of getting a finger trap.
Let C = the event of getting a bag of confetti.
Find P(C).
Find the probability that an Emotional Health Index Score is .
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