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3 years ago

6

A carpenter worked 10 weeks on a particular job 5 1/2 days per week and 7 3/4 per day how many hours did the carpenter work on t

he job

1 answer:

Sedbober [7]3 years ago

8 0

Answer:

Step-by-step explanation:

5 1/2 = 5.5 days in a week

7 3/4 = 7.75 hr per day

total hours in a week = 5.5 × 7.75 = 42.625 hr in a week

so in 10 weeks = 42.625 × 10 = 426.25 hr.

= 426 1/4 hr

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Answer:

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$\begin{array}{cccccc}x&1&2&3&4&5\\f&0.2&0.3&0.05&0.2&0.25\end{array}$

Step-by-step explanation:

First find the sum

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Now, find the probabilities:

$Pr(x=1)=\dfrac{4}{20}=\dfrac{1}{5}=0.2;$
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Hence, the frequency distribution table is

$\begin{array}{cccccc}x&1&2&3&4&5\\f&0.2&0.3&0.05&0.2&0.25\end{array}$

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