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Law Incorporation [45]
3 years ago
8

WILLL GIVE A BRAINLEST

Mathematics
2 answers:
lord [1]3 years ago
5 0

It is B. simple random sample

Mama L [17]3 years ago
4 0

Answer:

B. simple random sample

Step-by-step explanation:

The company randomly selects 100 customers and asks them about their level of satisfaction with the company. Therefore, the method used here is simple random sample

A simple random method is described as a random selection of few people from a majority or a whole population. These few samples represent the whole population. Moreover in a random sampling, each person has an equal chance to participate as its random and no one knows who will be selected. Random sampling is one of the best and non biased sampling methods to conduct any survey.

The cluster sampling is wrong as this form requires groups but here the company has not grouped people. This cannot either be stratified as in stratified sampling, sub-populations are considered and here it is not considered. In convenience sampling, the closest persons are surveyed which is not the case here. So, these 3 options are wrong.

Only simple random sampling is the correct option.

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Shawn thinks that helium prices next year might increase by 10%. He plans to buy 7 small balloons and x large balloons. He creat
Anna11 [10]

Answer:

P = 7.7 C + 1.1 XC

Step-by-step explanation:

From the question, it is noted that the price of helium required to fill each of the balloons would increase by 10%. Let the current price of helium be C, so that;

10% of C = 0.1 C

The price of helium next year = C + 0.1 C

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Cost of 7 small balloons = 1.1 C * 7

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Cost of X large balloons = 1.1 C * X

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The total price, P for helium next year = 7.7 C + 1.1 XC

Thus, the equation to find the total price of helium that would fill the balloons next year is;

P = 7.7 C + 1.1 XC

4 0
3 years ago
Allison wants to calculate the speed of a sound wave.<br> Which formula should she use?
Sphinxa [80]

Answer:

speed = distance/time

Step-by-step explanation:

The faster a sound wave travels, the more distance it will cover in the same period of time. If a sound wave were observed to travel a distance of 700 meters in 2 seconds, then the speed of the wave would be 350 m/s.

6 0
3 years ago
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For the whole thing including the other point it would be [-6, 6] but just for f it should be [6]
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Doss [256]

Answer:y=7

Step-by-step explanation:x=2+7=8

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