Ask question

Ask question

All categories

3 years ago

13

bill is in a class of 50 students.40% of the students in the class take the bus to school. How many students do not take the bus

to school.

1 answer:

deff fn [24]3 years ago

8 0

Answer:

30

Step-by-step explanation:

100%-40%=60%

but 50 is half of 100 you half 60% to 30 people

You might be interested in

490 animals increase at an annual rate of 20%

Radda [10]

My final answer is automatic 588

5 0

3 years ago

Read 2 more answers

A bakery is making whole-wheat bread and apple bran muffins. For each batch of break they make $35 profit. For each batch of muf

n200080 [17]

Answer:

Graph the linear equation.

Step-by-step explanation:

8 0

2 years ago

An article presents voltage measurements for a sample of 66 industrial networks in Estonia. Assume the rated voltage for these n

kramer

Answer:

We accept the null hypothesis and conclude that voltage for these networks is 232 V.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 232 V

Sample mean, $\bar{x}$ = 231.5 V

Sample size, n = 66

Sample standard deviation, s = 2.19 V

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 232\\H_A: \mu \neq 232$

We use Two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n-1}} }$ Putting all the values, we have

$t_{stat} = \displaystyle\frac{231.5- 232}{\frac{2.19}{\sqrt{66}} } = -1.8548$

Now,

$t_{critical} \text{ at 0.05 level of significance, 9 degree of freedom } = \pm 1.9971$

Since,

$|t_{stat}| > |t_{critical}|$

We accept the null hypothesis and conclude that voltage for these networks is 232 V.

4 0

3 years ago

Please help and thank you

tatyana61 [14]

Answer:

24

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

The frequency table shows the ages of the actors

Oksanka [162]

The percentage of youth that are category 10 to 12 is the quotient of their frequency to the total frequency

55% of the actors are 10 to 12 years old

<h3>How to determine the percentage?</h3>

From the complete question, we have the following parameters

Age 10 - 12 = 22 youths
Total youth = 40

The percentage of youth in the age category 10 - 12 is then calculated as:

Percentage = Frequency of age category 10 - 12/Total frequency

This gives

Percentage = 22/40

Evaluate the quotient

Percentage = 55%

Hence, 55% of the actors are 10 to 12 years old

Read more about frequency tables at:

brainly.com/question/16148316

3 0

2 years ago