Question

For 100​ births, P(exactly 55 ​girls)equals0.0485 and ​P(55 or more ​girls)equals0.184. Is 55 girls in 100 births a significantly high number of​ girls? Which probability is relevant to answering that​ question? Consider a number of girls to be significantly high if the appropriate probability is 0.05 or less

Answer 1

Answer: 55 can not be considered a significantly high number of girls.

The probability is relevant to answering that​ question =
`\text{P(55 or more girls)}=0.184`.

Explanation:

Given : For 100​ births,
`\text{P(exactly 55 girls)}=0.0485`

and
`\text{P(55 or more girls)}=0.184`.

Also it is said that consider a number of girls to be significantly high if the appropriate probability is 0.05 or less

To check :- If 55 girls in 100 births a significantly high number of​ girls .

We can see that
`\text{P(exactly 55 girls)}=0.0485<0.05`

and
`\text{P(55 or more girls)}=0.184>0.05` , it means it is likely to occur 55 or more girls .

So 55 can not be considered a significantly high number of girls.