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saw5 [17]
3 years ago
14

The following are all 6 quiz scores of a student in a statistics course. Each quiz was graded on a 10-point scale. 8,6,9,9, 8, 8

Assuming that these scores constitute an entire population, find the standard deviation of the population. Round your answer to two decimal places.
Mathematics
2 answers:
Rufina [12.5K]3 years ago
8 0

Answer:

mean=6+8+8+9+9+10divided 6 =

Reika [66]3 years ago
8 0

Answer:

1.

Step-by-step explanation:

The mean score is (8+6+9+9+8+8)/ 6

= 48/8

= 8.

Deviations from the mean are 0 , -2, 1, 1, 0, 0

Squares of these deviations  are 0, 4, 1, 1, 0, 0

So the variance =  (0 + 4 + 1 + 1 + 0 + 0)/ 6 =  1

Standard deviation = √1 = 1.

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Shante has a box with a volume of 458 cubic units. The box is filled with 458 cubes, with no gaps or overlaps. Which statement m
Aleonysh [2.5K]
The correct answer is that the length of one edge must be 1 unit.  One cubic unit has a length, width, and height of 1 unit.  V = 1 x 1 x 1.


6 0
4 years ago
AMERICAN AIRLINES HAS A POLICY OF BOOKING AS MANY AS 15 PEOPLE ON AN AIRPLANE THAT CAN SEAT ONLY 14. (PAST STUDIES HAVE REVEALED
Blizzard [7]

Using the binomial distribution, there is a 0.0874 = 8.74% probability that not enough seats will be available.

<h3>What is the binomial distribution formula?</h3>

The formula is:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

C_{n,x} = \frac{n!}{x!(n-x)!}

The parameters are:

  • x is the number of successes.
  • n is the number of trials.
  • p is the probability of a success on a single trial.

For this problem, the values of the parameters are given by:

n = 15, p = 0.85.

The probability that not enough seats will be available is P(X = 15), as the only outcome in which not enough seats will be available is when all 15 people who bought the ticket show up, hence:

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 15) = C_{15,15}.(0.85)^{15}.(0.15)^{0} = 0.0874

0.0874 = 8.74% probability that not enough seats will be available.

More can be learned about the binomial distribution at brainly.com/question/24863377

#SPJ1

8 0
1 year ago
In a right triangle the measures of the two smaller angles are (3x+6) and (2x+1) find the measure of the smaller angle in the tr
Lina20 [59]
Well since the triangle is right angled you know that the given angles sum to 90........(angle sum of a triangle 180, 1 angle = 90) so you can say 3x + 6 + 2x - 1 = 90 or 5x - 5 = 90 now solve for x. the smaller angle will be 2x - 1 so substitute your answer for x and you'll have the measure of the smaller angle. hope that helps

6 0
3 years ago
What is the vertical intercept for this function?<br><br> A.(0,1)<br> B. (1,0)<br> C.(0,0)
balandron [24]
I am not that sure but I am guessing it’s B.
8 0
3 years ago
Read 2 more answers
How to estimate 289 and 7
Lunna [17]
U can round 289 to 290 and round 7 to 5 or 10
4 0
3 years ago
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