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arlik [135]
3 years ago
9

Emily has 12 fruits in her bowl. She has 3 apples, 5 bananas, 1 pear and 3 oranges. A fruit is selected at random. What is the p

robability that the fruit is an orange or a pear?
5/6

1/3

1/2

2/3
Mathematics
2 answers:
Nonamiya [84]3 years ago
8 0
Since there are 3+1=4 fruits that are oranges or pears, there is a 4/12 or 1/3 chance to get an orange or a pear.
trapecia [35]3 years ago
5 0

Answer:

Option B is correct.

The probability that the fruit is an orange or a pear = \frac{1}{3}

Step-by-step explanation:

Given the statement: Emily has 12 fruits in her bowl. She has 3 apples, 5 bananas, 1 pear and 3 oranges.

Probability states that it is the chance or likelihood that an event will happen.

Also, It is the ratio of the number of ways an event can occur to the number of possible outcomes.

Total number of possible outcomes = 12

A : Event that the fruit is an orange

B : Event that the fruit is an Pear

P(A) = \frac{3}{12} = \frac{1}{4}

P(B) = \frac{1}{12}

Probability that the fruit is an orange or a pear =P(A) + P(B) = \frac{1}{4} +\frac{1}{12}=\frac{3+1}{12} = \frac{4}{12} = \frac{1}{3}



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2 years ago
If the distribution is really N ( 5.43 , 0.54 ) , N(5.43,0.54), what proportion of observations would be less than 5.05 ? 5.05?
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Answer:

P(X

And we can use the following excel code to find the answer: "=NORM.DIST(-0.704,0,1,TRUE)"

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

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