A letter from the word SAPPHIRE is selected at random 75 times. The results from the experiment are shown in the table.
A
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20
The spinner below is spun once. Which event is most likely to occur?
Spinning a number that is shaded and prime
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20
Theoretically, if you were to spin the spinner above 200 times, how many times could you expect it to land on an unshaded section?
125 times
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25
The spinner above is spun 60 times. The results are given in the table below. What is the theoretical probability of spinning an even number? What is the experimental probability of spinning an even number? Compare to theoretical.
Theoretical = 1/2 or 50%, Exp= 33/60=11/20 or 55%, more than expected
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15
A letter in the grid below is chosen at random. What is the probability that the letter is shaded and a vowel (A,E,I,O,U)? Express the probability as a simplified fraction, decimal and percent.
3/25, 0.12, 12%
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lifesaver
Give 15 points!
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seesaw
Swap points!
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gift
Win 25 points!
Okay!
thief
Give points!
5
10
15
20
25
10
A spinner with four equal-size sections marked M, A, T, and H is spun 100 times. The results are shown below. What is the theoretical probability of spinning an A? Express answer as a percent.
25%
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banana
Go to last place!
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gift
Win 25 points!
Okay!
fairy
Take points!
5
10
15
20
25
lifesaver
Give 10 points!
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20
Use the fundamental counting principle to determine the total number of outcomes: spinning the spinner twice and picking a card from a standard deck.
1300
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10
A card is chosen at random from a standard deck. Find P(queen or 5) as a fraction (in simplest form), decimal, and percent.
2/13, 0.15, 15%
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25
A quiz has eight multiple choice questions with four options for each (A, B, C, and D). How many ways are there to answer the questions?
65,536
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25
The spinner above is spun 60 times. The results are given in the table below. What is the theoretical probability of spinning a shaded number? What is the experimental probability of spinning a shaded number? Compare to the theoretical.
Theoretical = 3/8 or 38%, Exp.= 13/60 or 22%, less than expected
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20
A month of the year then a day of the week is selected at random. Find the probability of selecting a month that starts with the letter J, then selecting Friday as a fraction in simplest form.
1/28
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15
A box contains 8 apple, 10 fruit punch, 10 grape, and 12 berry juice boxes. A juice box is chosen at random. Find the probability of selecting an apple or a grape juice box. Express your answer as a simplified fraction and percent.