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]
3 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]3 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
Please do answer: <br><br>Simplify the expression---5x-2y + 3x + 2y<br><br>(100 points)
netineya [11]
  • 5x-2y+3x+2y

Combine like terms

  • 5x+3x-2y+2y
  • (5+3)x+(-2+2)y
  • 8x+0
  • 8x
8 0
2 years ago
Read 2 more answers
The yearbook club is handing out T-shirts to its members. There are 5 blue, 7 green, 9 red, and 4 yellow T-shirts in all. If Jac
damaskus [11]

Answer:

n(R)=9

n(Y)=4

n(B)=5

n(G)=7

n(s)25

probability of getting red =n(R)/n(S)=9/25

6 0
3 years ago
Find the 12th term of the geometric sequence 1, 2,4
irakobra [83]

Answer:

The 12th term in the sequence is 22

5 0
3 years ago
Read 2 more answers
The eurasian plate travels the slowest, at about 0.7 cm/y. How long would it take the plate to travel 3 cm?
damaskus [11]
Simply divide 3 by 0.7,

3 \div 0.7 =  \frac{30}{7}  = 4 \frac{2}{7}

Or ≈ 4.28571 which is ≈ 4 years.
5 0
3 years ago
Amy ordered 6 meals from Food Hub that cost $13.95 each, and she was charged a $10.50 delivery fee.
bezimeni [28]

Answer:

Amy had to pay in total 94.20$ for the meals with delivery

Step-by-step explanation:

6 total meals

6 x 13.95$ = 83.70$ The money payed for the food without the delivery

83.70 + 10.50 = 94.20$ Meals + delivery

6 0
3 years ago
Other questions:
  • Find the points of intersection of the circles x²+y²-15=0 and x²-4x+y²+2y-5=0. Check by graphing the equations.
    15·1 answer
  • Find three points and then graph: y 3/4x-1
    8·2 answers
  • Atamika ran a 5-mile loop. she started and ended in the same place.what was her displacement<br>​
    13·1 answer
  • Which line has a constant of proportionality between y and x of 1/2<br>​
    6·1 answer
  • A missing fraction on a number line is located exactly halfway between 3/6 and 5/6. what is the missing fraction
    7·2 answers
  • Hey guys can u please help me
    9·2 answers
  • Everything else right but just can’t figure that fraction out.
    8·1 answer
  • <img src="https://tex.z-dn.net/?f=F%28X%29%20%3D%20%5Cfrac%7B%28X-3%29%28X%2B1%29%7D%7B%28X%2B3%29%7D" id="TexFormula1" title="F
    6·1 answer
  • Which expression is equivalent to -12(3x-)?
    7·1 answer
  • Can someone work out this problem for me because I do not get it and it is due tomorrow for homework? 83.971 + 10.9 PLSS HELPPPP
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!