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
irga5000 [103]
3 years ago
5

Mary took 8 tests in science and received the following scores: 87,60,76,92,63,91,88,75

Mathematics
1 answer:
MariettaO [177]3 years ago
3 0

Answers:

  • mean = 79
  • mode = none
  • median = 81.5

=================================================

Explanation:

To get the mean, you add up the numbers and then divide by n = 8, since there are 8 scores

Adding the scores gets us: 87+60+76+92+63+91+88+75 = 632

Divide that over n = 8 to get 632/n = 632/8 = 79

The mean is 79

You have the correct answer. Nice work.

---------------

The mode is the most frequent value.

In this data set, we don't have any repeated values. Each unique number is listed one time only. So that tells us we don't have a mode here.

---------------

To get the median, we need to sort the items from smallest to largest

{87,60,76,92,63,91,88,75} sorts to {60,63,75,76,87,88,91,92}

Because we have n = 8 values, which is an even number, this tells us that the median is between slot n/2 = 8/2 = 4 and slot 5

The values 76,87 are in slots four and five in that order. Add them up and divide by 2:  (76+87)/2 = 163/2 = 81.5 is the median

You might be interested in
you sell bracelets for $2 each and necklaces for $3 each at a local flea market. You collect$95, selling a total of 37 jewelry i
Alex787 [66]
The system of linear equations that may be used in order to solve this problem is as follows:

x + y = 37
2x + 3y = 95

This is considering that x is the number of bracelets sold and y is the number of necklaces.

The values of x and y in the equation are 16 and 31, respectively.

Thus, the answer is 16 bracelets and 21 necklaces.
4 0
3 years ago
Please help me solve this whole problem!
kondor19780726 [428]

Answer:

(0, -4)

rise/run = (-5/1)

x      y

1     -9

2    -14

3    -19

4    -24

5    -29

6    -34

Step-by-step explanation:

You're going to have to graph it yourself.

Take the coordinated and just plot the points, then draw the line.

(1,-9)

(2,-14)

(3,-19)

(4,-24)

(5,-29)

(6,-34)

3 0
3 years ago
13. Mr. Carmello drives 30 miles each
Sauron [17]

Answer:

240 miles

Step-by-step explanation:

he drives 30 miles there and back which is 60 miles and 6 times 4 is 24 so 60 times 4 is 240

8 0
3 years ago
How do you do ratio charts
Alla [95]
Write several instances of the ratio,then plot the ratios as points on the graph
8 0
3 years ago
Read 2 more answers
Tyler needs to complete this table for his consumer science class. He knows that 1 tablespoon contains 3 teaspoons and that 1 cu
aalyn [17]

Answer:

1 pint=32    1 quart=64    1 gallon=256

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Estimate 740,758-263043
    7·1 answer
  • Which equation can be used to find one or more factors of 26?
    14·1 answer
  • 5x2-2y when x=2 y=3 what is the best answer
    14·2 answers
  • Jenna has a bag that contains 7 red marbles and 25 blue marbles. She selects a marble at random, and then, without replacing the
    6·1 answer
  • A die is thrown six times.
    15·1 answer
  • Mr. Toshiro manages a company that supplies a variety of domestic and imported nuts to supermarkets. He received as order for 12
    9·1 answer
  • 4. A bag of rice at the warehouse store weighs
    7·1 answer
  • The picture shows a collection of eight
    7·1 answer
  • El valor de x en la ecuación 1+4x-3=6x+8
    8·2 answers
  • X is a discrete random variable. The table below defines a probability distribution for X.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!