2. Basic Skills Quiz #11
1.) Divide and write your answer in simplest form.
2
1
5 ÷ 1
2
2.) Complete the following decimal operation.
2.35 + 123.4
3.) Solve the following equation.
x + 7 = 11
3
4.) Estimate the following answer.
1124 ÷ 17
5.) Round the following to the nearest tenth.
25.589
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3. Anticipatory Set
Number of times an event occurs
Experimental Probability =
Number of trials
3
7. 1.) Were the experimental probabilities the same each
experiment? Explain why or why not.
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8. 2.) For the past three weeks, Karl has been recording the daily high
temperatures for a science project. During that time, the high
temperature was above 75°F for 14 out of the 21 days.
a.) What is the experimental probability that the high
temperature will be above 75°F on the next day?
b.) What is the experimental probability that the high
temperature will be 75°F or below on the next day?
c.) Find the sum of the probabilities in Examples 2a and
2b. Why do you think adding the probabilities gives you
this sum?
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14. The following expression is used for finding Batting Average,
which is an example of an experimental probability. Batting
Averages are rounded to the thousandth.
H
AB
Derek Jeter had 11 hits in 27 at bats
during the 2009 World Series. What
was his Batting Average?
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15. BEFORE YOU LEAVE
Why are experimental probabilities not an exact way
of predicting future events?
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17. AIM: Experimental Probability
Number of times an event occurs
Experimental Probability =
Number of trials
Find the following experimental probabilities.
a.) P(6) b.) P(2) c.) P(not 5)
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18. AIM: Experimental Probability
Number of times an event occurs
Experimental Probability =
Number of trials
Find the following experimental probabilities.
a.) P(6) b.) P(2) c.) P(not 5)
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