3 years ago

4. How many days of selling bicycles is involved in the study?b. 40c. 35d. 10a. 45

Mathematics

1 answer:

Katarina [22]3 years ago

5 0

Is there any other information that you can give us?

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this gives us...

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3 years ago

Which of these has a sum of 1 19/30 ?

nata0808 [166]

<h3>Answer:</h3>

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3 years ago

Read 2 more answers

A couple plans to have children until they get a girl, but they agree that they will not have more than three children even if a

MAVERICK [17]

Answer:

1.75,0.625

Step-by-step explanation:

Given that a couple plans to have children until they get a girl, but they agree that they will not have more than three children even if all are boys.

a) The couples can have

X I girl I boy, II girl I,II boys, III girl I,II,III boys

Pr. 0.5 0.25 0.125 0.125

b) Expected no of children

= $1(0.5)+2(0.25)+3(0.125)+3(0.125)\\=1+0.75\\=1.750$

c)Expected number of boys

= $0*0.5+1*0.25+2*0.125+3*0.125\\=0.625$

6 0

3 years ago

4. How many days of selling bicycles is involved in the study?b. 40c. 35d. 10a. 45​

4. How many days of selling bicycles is involved in the study?b. 40c. 35d. 10a. 45