1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nuetrik [128]
2 years ago
6

A professor gives a statistics exam. The exam has 100 possible points. The scores for the students in the second classroom are a

s follows:
88 88 92 88 88 72 96 88 84
Calculate the sample size, n, and the sample mean, M n = M =
While grading the exam, the professor realizes that one of the questions covered material that was not yet covered in the lectures. This question was worth 20 points, so he decides to add 20 points to everyone's score.
Calculate the new n and M.
Mathematics
1 answer:
Vesna [10]2 years ago
3 0

Answer:

N = 9

M = 87.11

Step-by-step explanation:

According to the situation, the data provided and the solution are as follows

The scores for the student in the classroom is

= 88 88 92 88 88 72 96 88 84

The different student's number of scores is 9

The solution of new n and M is shown below:-

Sample size (n) = 9

Sample mean (m) is

= \frac{Sum\ of\ all\ data\ values}{Sample\ size}

= \frac{88 + 88 + 92 + 88 + 88 + 72 + 96 + 88 + 84}{9}

= \frac{784}{9}

= 87.11

You might be interested in
41x0x3 what property is this
Drupady [299]

The Multiplication Property of Zero.

It states "the product of any number and zero is zero". Even if there are more than one multiplier - it is still 0.

So 5 x 0 = 0

100 x 0 = 0

41 x 0 x 3 = 0

etc.

6 0
2 years ago
Read 2 more answers
What's the difference between 1 and 1 3/5
Dennis_Churaev [7]
3/5 is the answer. Difference means to subtract
7 0
3 years ago
Read 2 more answers
Find the distance between the two points to the nearest tenth. (0,-5) and (-4,2) 5 5.3 5.2 5.6
zubka84 [21]
Sqr (x2 - x1)^2 + (y2 - y1)^2
Sqr (-4-0)^2 + (2+5)^2
Sqr (16) + 49 = sqr 65
I got around 8.
(I might did something wrong, idk)
7 0
3 years ago
Please help me out with these slopes.
inysia [295]
Remember, the slope formula is y2-y1 over x2-x1. To plug numbers into the formula, find two points. Then, you substitute the points into the formula.
3 0
3 years ago
Given cos 0 = 11/6 and angle 0 is in Quadrant I, what is the exact value of sin 0 in
user100 [1]

1 = sin²0 + cos²0

sin²0 = 1 - cos²0

sin²0 = 1 - 11/36

sin²0 = 25/36

sin 0 = 5/6 or -5/6

In the first quadrant, the values for sin, cos and tan are positive.

sin0 = 5/6

8 0
2 years ago
Other questions:
  • Find a value of 21 + 4(3^2 -5)
    15·1 answer
  • 25x + 6<br> 40x-3<br> 13x - 3<br> x=
    5·1 answer
  • 8 customers entered a store over the course of 10 minutes.
    7·1 answer
  • The base of the triangle decreases by 30% and the height increases by 20%.
    14·1 answer
  • After studying the diagram shown, Michael makes the following conclusions: 1. DG = 3 and the area of square DEFG is 9. 2. AG = 4
    15·2 answers
  • Does -3x less than or equal to -3x have a solution
    12·2 answers
  • Imma just leave this here imma do brainlyest
    12·1 answer
  • The graph shows how the length of a buildings shadow at a certain time of day is related to the height of the building.
    14·2 answers
  • Write an algebraic expression
    6·2 answers
  • Classify the following triangle. Check all that apply. 60° 8.4 4.2 30" 7.3 A. Acute B. Equilateral C. Obtuse D. Scalene E. Isosc
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!