local bakery has determined a probability distribution for the number of cheeseca. sells in a given day. The distribution is as follows: Number sold in a day 10 Probability 20 30 40 0.1 0.4 0.2 0.2 0.1

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Chapter1: Starting With Matlab
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Q42 and 43
Question 42
A local bakery has determined a probability distribution for the number of cheesecakes
it sells in a given day. The distribution is as follows:
Number sold in a day
Probability
10
20
30
40
0.1
0.4 0.2 0.2 0.1
If the mean number of cheesecakes that this local bakery sells in a day is 29, what is
the value of x?
O 23
O 50
O 25
O 45
O None of the other choices gives the correct answer.
O 40
O 60
Question 43
A box contains 3 yellow., 2 red, 4 green and 3 black marbles. Two marbles are taken one
after the other at random from the box without replacement. What is the probability
that both marbles are red?
60
O None of the other choices gives the correct answer.
50
66
Transcribed Image Text:Question 42 A local bakery has determined a probability distribution for the number of cheesecakes it sells in a given day. The distribution is as follows: Number sold in a day Probability 10 20 30 40 0.1 0.4 0.2 0.2 0.1 If the mean number of cheesecakes that this local bakery sells in a day is 29, what is the value of x? O 23 O 50 O 25 O 45 O None of the other choices gives the correct answer. O 40 O 60 Question 43 A box contains 3 yellow., 2 red, 4 green and 3 black marbles. Two marbles are taken one after the other at random from the box without replacement. What is the probability that both marbles are red? 60 O None of the other choices gives the correct answer. 50 66
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