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LenaWriter [7]
2 years ago
6

on a recent latin quiz, two people scored a 100, three people scored a 90, five people scored an 80, one person scored a 70. fin

d the standard deviation of these scores
Mathematics
1 answer:
irina [24]2 years ago
4 0
The answer is 70. Tell me if I’m right
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A group of 72 students went on a field trip the students traveled in vans with an equal number of boys and girls and each Van a
timurjin [86]
30 girls and 42 boys so idk this makes no sense and I'm older than you
5 0
2 years ago
Tina designed an electric skateboard that has a speed of 4 miles per hour. In one hour it travels 4 miles, and in 2 hours it tra
Feliz [49]

We have been given that Tina designed an electric skateboard that has a speed of 4 miles per hour. Further we are given that in one hour it travels 4 miles, and in 2 hours it travels 8 miles.

We know that speed of any object can be found at any time, irrespective of it being a complete hour or a fractional hour. Therefore, speed of the electric skateboard is an example of continuous data.

The that in one hour it travels 4 miles, and in 2 hours it travels 8 miles have been given so that someone can easily confuse the speed of electric skateboard as a discrete data, but in actual speed of skateboard is a continuous data.

8 0
3 years ago
I don't know how to help my sister with this please help
Orlov [11]
It’s 3/12 you just need to find common multiples
5 0
3 years ago
The test statistic of z=1.92 is obtained when testing the claim that p≠0.767. a. Identify the hypothesis test as being​ two-tail
Makovka662 [10]

Answer:

it is a two tailed test

The p - value for z=1.92  is 0.9726

Using a significance level of α=0.10, We fail to reject H0. The calculated z value lies out side the Zα value.

Step-by-step explanation:

For p≠0.767

Taking  null hypothesis as p≠0.767 and alternate hypothesis as p =0.767

H0 :p≠0.767  Ha :p≠0.767  it is a two tailed test

The p - value for z=1.92  is 0.9726 from the table.

Using a significance level of α=0.10

z value for 0.10 for two tailed test is ± 1.645

Z >zα

1.92> ± 1.645

Using a significance level of α=0.10, We fail to reject H0. The calculated z value lies out side the Zα value.

7 0
3 years ago
Find the least common denominator for these fractions. Enter your answer in<br> the space provided.
KonstantinChe [14]

Answer:

10

Step-by-step explanation:

"Least" means smallest.

"Common" means same.

"Denominator " means the bottom number in a fraction.

Something/2 can be changed to something/10

AND something/5 can also be changed to

something/10

1/2 >>>> 5/10

3/5 >>>> 6/10

10 is the least common denominator.

3 0
2 years ago
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