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3 years ago

12

Jenny needs to make a total of 60 deliveries this week. So far she has completed 9 of them. What percentage of her total deliver

ies has Jenny completed?

1 answer:

Dmitriy789 [7]3 years ago

3 0

Answer:

15%

Step-by-step explanation:

9/60 = x/100

mulitpy 9 x 100

Divide 900 by 60

and you get 15

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Answer:

See explanation

Step-by-step explanation:

Given the frequency table

$\begin {array}{cccccccccc}\text{Number}&0&1&2&3&4&5&6&7&8\\ \\\text{Frequency}&5&10&2&9&33&12&15&3&1\end{array}$

a) The total sum is

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$\begin {array}{cccccccccc}\text{Number}&0&1&2&3&4&5&6&7&8\\ \\\text{Probability}&\dfrac{5}{90}&\dfrac{10}{90}&\dfrac{2}{90}&\dfrac{9}{90}&\dfrac{33}{90}&\dfrac{12}{90}&\dfrac{15}{90}&\dfrac{3}{90}&\dfrac{1}{90}\end{array}$

b) The probability

$P(x$

c) The probability

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d) The probability

$P(x\ge 5)=P(x=5)+P(x=6)+P(x=7)+P(x=8)=\dfrac{12}{90}+\dfrac{15}{90}+\dfrac{3}{90}+\dfrac{1}{90}=\dfrac{31}{90}$

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