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Llana [10]
3 years ago
11

Why should you generally expect some error when estimating a parameter? (for example, a population? mean) by a statistic? (for e

xample, a sample? mean)? what is this kind of error? called?
Mathematics
1 answer:
nexus9112 [7]3 years ago
8 0

This is called as sampling error or sampling variability. Sampling error is the variability that happens because the value of a sample statistic varies from sample to sample. Sampling error is acquired when a population is estimated from a subset, or sample.

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Which of the following values of x make the following functions equal? y = 2x + 6 and
Papessa [141]

Answer:

the answers Is c. x=4

Step-by-step explanation:

do substitution 2*4+6=14

and 6*4-10=14

6 0
3 years ago
How to work out an angle using cosine. three sides are; 8,19,12.
Kay [80]
To solve for cos use 
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7 0
3 years ago
Explain how to find the surface area of a can of fruit with a height of 80 mm and a diameter of 60 mm. Give the area in your exp
8_murik_8 [283]

Answer:

S=6600\pi \text{ mm}^2

S\approx 20724 \text{ mm}^2

Step-by-step explanation:

A can of fruit is geometrically a cylinder.

We are talking about the <u>surface area of a cylinder</u>:

S=2\pi rh+2\pi r^2

\pi \approx 3.14

r: \text{radius}

h: \text{height}

Factoring, we have:

S=2\pi r (h+r)

Calculating the surface area of the can of fruit:

S=2\pi (30) (80+30)

S=2\pi (30) (110)

S=6600\pi

S\approx 20724 \text{ mm}^2

7 0
3 years ago
Read 2 more answers
During the summer, Hector does yard work, and Geri babysits.To show their earnings, Hector makes a graph, and Geri makes a table
VLD [36.1K]

I think that when you asked this question, no one answered because there is not enough information. I also got this problem and there is in fact, a table and a graph.

Step-by-step explanation:

for Hector, it only shows a y and x graph and for Geri it shows a table. let´s call the graph the ¨h¨ graph (for Hector) and the table is going to be called the ¨g¨ graph (for Geri)

on the h graph, it shows that y/x = dollars/time for Hector,

on the g table, it shows that Geri is getting paid $25.50 for each 3 hours and it keeps increasing within each input and output.

your y = your dollars

your x = your time

we are looking for slope and we need $15 over hours

15/x

the answer is that Hector earns $6.50 more than Geri

4 0
3 years ago
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Which statement is true about the equation (x – 4)(x + 2) = 16?
BabaBlast [244]
The factored form of the equation is (x + 4)(x – 6) = 0.
5 0
3 years ago
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