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GuDViN [60]
3 years ago
5

Find the probability for the given situations, and then match the situations with the number of times each event is predicted to

occur. Josie rolls a six-sided die 18 times. What is the estimated number of times she rolls a two? 3 Slips of paper are numbered 1 through 10. If one slip is drawn and replaced 40 times, how many times should the slip with number 10 appear? 5 A spinner consists of 10 equal- sized spaces: 2 red, 3 black, and 5 white. If the spinner is spun 30 times, how many times should it land on a red space? 6 A card is picked from a standard deck of playing cards 65 times and replaced each time. About how many times would the card drawn be an ace? 4
Mathematics
1 answer:
Ulleksa [173]3 years ago
8 0

Answer:

(a)3

(b)4

(c)6

(d)5

Step-by-step explanation:

(a)Josie rolls a six-sided die 18 times.

P(she rolls a two)=1/6

Therefore, the estimated number of times she rolls a two in 18 trials

=1/6 X 18

=3

(b)Slips of paper are numbered 1 through 10.

P(the number 10 appear)=1/10

If one slip is drawn and replaced 40 times, expected number of 10

=1/10 X 40

=4

(c)A spinner consists of 10 equal- sized spaces: 2 red, 3 black, and 5 white.

P(red)=2/10

If the spinner is spun 30 times, expected number of red space

=2/10 X 30

=6

(d)A card is picked from a standard deck

P(drawing an ace)=4/52

If the card is picked 65 times and replaced each time.

Expected Number of Aces =4/52 X 65 =5

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