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djyliett [7]
1 year ago
8

A study was performed with a random sample of 1500 people from two colleges located in one city. what population would be approp

riate for general conclusion from the study, assuming the data collection methods used did not introduce biases?
Mathematics
1 answer:
Galina-37 [17]1 year ago
4 0

Using sampling concepts, it is found that a population of <u>all the students in those two colleges</u> would be appropriate for study.

<h3>What is sampling?</h3>

It is a common statistics practice, when we want to study something from a population, we find a sample of this population, which is a group containing elements of a population. A sample has to be representative of the population, that is, it has to involve all segments of the population.

In this problem, a group of students is taken from two colleges, hence a population of <u>all the students in those two colleges</u> would be appropriate for study.

More can be learned about sampling at brainly.com/question/25122507

#SPJ1

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Suppose the number of free throws in a basketball game by one player are normally distributed with a standard deviation 0.97 fre
babunello [35]

Answer: 1.960

Step-by-step explanation:

The value of z we use to calculate a confidence interval with a (1-\alpha) confidence level is a two-tailed test value i.e. represented by :-

              z_{\alpha/2}

Given : The level of confidence: 1-\alpha=0.95

Then, significance level : \alpha: 1-0.95=0.05

With the help of standard normal distribution table for z , we have

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.960

Hence, the value of z should be used to calculate a confidence interval with a 95% confidence level =1.960

3 0
3 years ago
PLEASE HELP with math
MArishka [77]

Answer:

1. 4 * 7 * 11 = 308

2. 7 * 7 * 4/2 = 98

3. 98 + 308 = 406

Hope this helps!

6 0
2 years ago
A bag had 7 orange rocks , 6 green rock , 1 white rock ,7 black rocks , and 2 yellow you randomly pull a rock from the bag ,keep
daser333 [38]

Answer:

Probability = \frac{7}{253}

Step-by-step explanation:

Given

Orange = 7

Green = 6

White = 1

Black = 7

Yellow = 2

Required

Probability of selecting a yellow then orange rock

From the question, we understand that the probability is that of without replacement.

Since the yellow, is first picked.

We need to determine the probability of picking a yellow rock, first.

P(Yellow) = \frac{n(Yellow)}{Total}

P(Yellow) = \frac{2}{7 + 6 + 1 + 7 + 2}

P(Yellow) = \frac{2}{23}

The rock has reduced by 1;

Next is to determine the probability of picking an orange rock

P(Orange) = \frac{n(Orange)}{Total - 1}

P(Orange) = \frac{7}{7 + 6 + 1 + 7 + 2- 1}

P(Orange) = \frac{7}{22}

The required probability is calculated as thus:

Probability = P(Yellow) * P(Orange)

Probability = \frac{2}{23} * \frac{7}{22}

Probability = \frac{14}{506}

Probability = \frac{7}{253}

4 0
3 years ago
LaDanian wants to write the fraction 4 / 6 as a sum of unit fractions. what expression should he write
julsineya [31]
He <span>wants to write the fraction 4 / 6 as a sum of unit fractions. It is written as follows:
</span>
1/6 +1/6 +1/6+ 1/6= 4/6.

A unit fraction has a numerator of 1 so since 4 is the numerator in 4/6 you would have to add 1/6 for four times. 

Hope this answers the question. Have a nice day.
7 0
3 years ago
A train travels 220 miles in 4 hours. What is the train's speed in feet per minute?
Katena32 [7]
220 miles in 4 h = 55 mph multiply this by 5280 to get feet per hour then divide this by 60 to get ft/min


7 0
3 years ago
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