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Yuri [45]
3 years ago
5

Chin researched the amount of money 150 students earned per month from jobs held during the summer. He created a table of six sa

mple means from his collected data. Sample Number Sample Mean ($) 1 208 2 235 3 245 4 207 5 205 6 210 Using his results, what is a valid prediction about the mean of the population?
Mathematics
2 answers:
dem82 [27]3 years ago
8 0

the choices are below

the predicted mean of the population will be less than 200.

The predicted mean of the population will be less than 245.

The predicted mean of the population will be more than 275.

The predicted mean of the population will be more than 250.

b is the answer

likoan [24]3 years ago
3 0

Answer:

the predicted mean will be less than 245

Step-by-step explanation:

For ungrouped data

mean can be calculated using formula

sum of all observations/total no of observations

For grouped data

mean (x)= £f(x)/n

n represents the frequency

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3 years ago
X4-3x3+3x2-3x+6÷x-2 synthetic division
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5 0
3 years ago
Read 2 more answers
How many solutions does this system of equations have?
Alekssandra [29.7K]
The first step for solving this expression is to know that since both of the expression are equal to y,, we must set them each to each other to form an equation in x. This will look like the following:
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7 0
4 years ago
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inn [45]

Answer:

economy class = 260

business class = 100.

Step-by-step explanation:

for every 13 economy seats, there are 5 business class seats

EC = 13

BC = 5

ADD  to get total = 18

divide 360 by 18 to get the number of groups created.

you get 20.

multiply 20 by each class seats

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5 by 20 = 100

you can confirm by adding the seats to see if you will get 360.

5 0
3 years ago
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