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
Ipatiy [6.2K]
2 years ago
9

Compare the scores: a score of 75 on a test with a mean of 65 and a standard deviation of 8 and a score of 75 on a test with a m

ean of 70 and a standard deviation of 4.
Mathematics
1 answer:
LiRa [457]2 years ago
7 0

Answer:

The Zscore for both test is the same

Step-by-step explanation:

Given that :

TEST 1:

score (x) = 75

Mean (m) = 65

Standard deviation (s) = 8

TEST 2:

score (x) = 75

Mean (m) = 70

Standard deviation (s) = 4

USING the relation to obtain the standardized score :

Zscore = (x - m) / s

TEST 1:

Zscore = (75 - 65) / 8

Zscore = 10/8

Zscore = 1.25

TEST 2:

Zscore = (75 - 70) / 4

Zscore = 5/4

Zscore = 1.25

The standardized score for both test is the same.

You might be interested in
HELP PLEASEEEE Lots of points
MArishka [77]

Answer:

-4, 2, 3

Step-by-step explanation:

Centre: (-4,2)

Radius: 3

(x - -4)² + (y - 2)² = 3²

7 0
3 years ago
Read 2 more answers
What I things you want to clarify immediately about evaluating functions?​
insens350 [35]

Answer:

Important! The "x" is just a place-holder! And "f" is just a name.

These are all the same function:

f(x) = 1 − x + x2

f(q) = 1 − q + q2

w(A) = 1 − A + A2

pumpkin(θ) = 1 − θ + θ2

Step-by-step explanation:

3 0
3 years ago
An election ballot asks voters to select five city commissioners from a group of thirteen candidates. In how many ways can this
anzhelika [568]
This can be solved using permutations.You can get more into this online or just accept a quick answer here.

Since there are certain roles to be filled this is a permutation.

You need a somewhat smart calculator for this.

If I remember this right you'd type in the number of people you are choosing from, P , and then the places you are trying to fill.

So it should look like this:

13 P 5

You can find where permutations and combinations are in your calculator using a handbook or the internet but usually it looks like nPr for permutation or nCr for combination.
8 0
2 years ago
Which of the following is a reasonable estimate for the number of centimeters in a kilometer? A. 1 × 10-3 cm B. 1 × 10-5 cm C. 1
AfilCa [17]

Answer: C 1*10^5

Step-by-step explanation:

There are 10^2 cm in a meter, and 10^3 meter in a kilometer, so there are 10^2 * 10^3 = 10^5 cm in a kilometer

3 0
3 years ago
A party-sized bag of tortilla chips normally costs $3.80. The supermarket has them on sale today for $2.85. What is the percenta
Andre45 [30]
So first subtract 3.80 by 2.85 to find the amount of money that was taken off. Can you do that?
6 0
3 years ago
Other questions:
  • Which statement best compares a line and a point
    10·1 answer
  • Keith wants to make cupcakes. To make cupcakes he needs 1 3/10 cups of flour per batch of cupcakes. If Keith has 13 cups of flou
    11·1 answer
  • Justin wants to buy a new bike that costs $115. He has $40 and plans to
    7·1 answer
  • 70 is 25% of what number
    8·1 answer
  • WILL GIVE BRAINLIEST!!!
    15·1 answer
  • Are the following lines parallel,perpendicular,neither <br>y =2x-1<br>y=-1/2x+3<br>​
    15·1 answer
  • Simplify. Write answer with positive exponents.8^3⋅8^5
    11·1 answer
  • This is a test get it right I want a good grade
    9·1 answer
  • Can anybody answer this please this is indices?
    13·2 answers
  • X square root 7x + 10<br> factor the equation<br><br> algerbra 2
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!