3 years ago

There are 90 people in a group.

1 answer:

rewona [7]3 years ago

8 0

Answer:

45 children 15 men 30 women

Step-by-step explanation:

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Fantom [35]

The answer is B, 4000.

3 0

3 years ago

Nutka1998 [239]

Answer: 1.303639

Step-by-step explanation:

The t-score for a level of confidence $(1-\alpha)$ is given by :_

$t_{(df,\alpha/2)}$ , where df is the degree of freedom and $\alpha$ is the significance level.

Given : Level of significance : $1-\alpha:0.80$

Then , significance level : $\alpha: 1-0.80=0.20$

Sample size : $n=40$

Then , the degree of freedom for t-distribution: $df=n-1=40-1=39$

Using the normal t-distribution table, we have

$t_{(df,\alpha/2)}=t_{39,0.10}=1.303639$

Thus, the t-score should be used to find the 80% confidence interval for the population mean =1.303639

8 0

3 years ago

Rzqust [24]

If you're asking what I think you are,
Decorate, Equation, and Vertical has 3 syllables.
Temperature has 4 syllables - <span>tem-per-a-ture</span>

3 0

3 years ago

Anestetic [448]

Answer:

720

Step-by-step explanation:

24500 (total) subtracted by (10,700 + 5000 + 1600) =7200. 7200 divide by 10 mo=720

7 0

3 years ago

slavikrds [6]

50:30 because 25 plus 25 is 50 and 15 plus 15 is 30

5 0

3 years ago