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2 years ago

Find the population of beetles a week later by first finding 6% of 350 and adding it to the original population

Mathematics

1 answer:

Delvig [45]2 years ago

6 0

Step-by-step explanation:

6 percent of 350 is 21. 21 plus 350 is 371, therefore the answer is 371.

Brainliest? :)

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In a recent study of 42 eighth graders, the mean number of hours per week that they watched television was 19.6. Assume the popu

olya-2409 [2.1K]

Answer:

$19.6-2.42\frac{5.8}{\sqrt{42}}=17.43$

$19.6+2.42\frac{5.8}{\sqrt{42}}=21.77$

And the best option for this case would be:

a. (17.5, 21.7)

Step-by-step explanation:

Information given

$\bar X= 19.6$ represent the sample mean

$\mu$ population mean

$\sigma= 5.8$ represent the population deviation

n=42 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom, given by:

$df=n-1=42-1=41$

Since the Confidence is 0.98 or 98%, the significance would be $\alpha=0.02$ and $\alpha/2 =0.1$ , and the critical value would be $t_{\alpha/2}=2.42$

Replacing we got:

$19.6-2.42\frac{5.8}{\sqrt{42}}=17.43$

$19.6+2.42\frac{5.8}{\sqrt{42}}=21.77$

And the best option for this case would be:

a. (17.5, 21.7)

8 0

3 years ago

Input Output Which ordered pair needs to be removed in order for the mapping to represent a function? O (-3, -4) O (-2, -1) O (1

QveST [7]

Answer:

(-2,-1)

Step-by-step explanation:

5 0

2 years ago

Joses went on a cruise to the Bahamas. His total cost for the trip is $810.

slega [8]

Answer:

Step-by-step explanation:

yep 4 days cuz logicaly

3 0

2 years ago

Out of 431 applicants for a job, 142 have over 5 years of experience and 103 have over 5 years of experience and have a graduate

Savatey [412]

Answer:

0.2390

Step-by-step explanation:

<u>Given</u>

Total applicants = 431
Applicants with graduate degree and over 5 years of experience = 103

Probability = favorable outcomes/total outcomes

<u>Required probability </u>

103/431 = 0.2390 rounded to 4 decimal places

3 0

3 years ago

Janet types 584 words in 8 minutes. How fast can she type per minute?

wel

Answer:

Step-by-step explanation:

584/8

4 0

2 years ago

Read 2 more answers