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PolarNik [594]
3 years ago
15

Pls answer all 5 and 100 points are being offered for these answers. Pls include a very thought out explanation. tysm!

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
3 0
What’s the question
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A box is supposed to have 150 folders in it. Clare counts only 147 folders in
VikaD [51]

Answer:

it's a 0.02% error.

147/150= 0.98% of the folders are there, making the error 0.02%

Step-by-step explanation:

5 0
3 years ago
Suppose x has a distribution with μ = 40 and σ = 12. (a) If random samples of size n = 16 are selected, can we say anything abou
Temka [501]

Answer:

a: no the sample size is too small

b:  Yes, the distribution is normal with a mean of 40 and standard deviation of 12

Step-by-step explanation:

a:  If n < 30, we need to know that the sample is normally distributed or else we can't determine anything.  When sample sized get very large, they usually resemble normally distributed data sets so we can still make conjectures even if the data isn't officially normally distributed

b: The question tells us that the sample is normally distributed, so even though n < 30, we can still make conjectures about the population

7 0
3 years ago
ALGEBRA QUESTION<br> x+7=8.3;x=1.3 TRUE OR FALSE
Leni [432]
This is true.

x+7=8.3. Remove 7 on both sides :x=8.3-7=1.3
7 0
3 years ago
Read 2 more answers
The population of a town is 500,000 in 1990. The population increases at a rate of 5% every five years. What will be the approxi
SVETLANKA909090 [29]
A = P(1+r)^(t/5) A = 500000(1+0.05)^(15/5) A = 500000(1.05)^(15/5) A = 500000(1.05)^3 A = 500000*1.157625 A = 578812.5 Telling us that the population will be about 578,812 people in the year 2005
5 0
3 years ago
A ratio of boys to girls in the classroom is 4 to 5 if there are 20 girls how many boys would there be
Viktor [21]

Answer:

16 to 20

Step-by-step explanation:

Let's do our math.

4 to 5

8 to 10

12 to 15

16 to 20

In order to get to 20, you'd have to multiply 5 by 4. So in order to get an equal ratio, you multiply 4 by 4 and get 16.

I hope this helps!

-No one

8 0
2 years ago
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