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
Anit [1.1K]
3 years ago
14

consider the gre scores for a random sample of 6 students out of a class of 25: name julia andrew jason cathy jessica robert sco

re 650 550 380 720 710 550 what is the point estimate for the mean score for students in the class?
Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
6 0
Name  Score
Julia      650
Andrew 550
Jason    380
Cathy    720
Jessica 710
Robert   550

Point estimate for the mean score:
Sample mean = sum of all observations / number of observations

sample mean = (650+550+380+720+710+550) / 6
sample mean = 3560 / 6 
sample mean = 593.33

The point estimate for the mean score is 593.33
You might be interested in
Please help, will give brainliest if right!
Nimfa-mama [501]

Answer:

a

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
-QUICK PLEASE-
Zepler [3.9K]

Answer:

Option B. 0.75 gallons is the right answer.

Step-by-step explanation:

Let the load of dishwasher used in house A = x gallons

Let the load of dishwasher used in house B is = y gallons

and similarly we assume for house C = z gallons

Now from the given question

On Friday amount of water used in all three houses = 17.5 gallons

From the table we will make the equation

x + 2y + 2z = 17.5-----(1)

For Saturday

2x + 3y + 4z = 31.5 ----(2)

For Sunday

2x + 2y + 3z = 24.75 -----(3)

By subtracting equation 3 from 2

y + z = 31.5 - 24.75 = 6.75 ------(4)

Equation (1) multiplied by 2 - equation (2)

2×(x + 2y + 2z) - (2x + 3y + 4z) = 17.5×2 - 31.5

y = 35 - 31.5 = 3.5

By putting y = 3.5 in the equation (4)

z = 6.75 - 3.5 = 3.25

By putting y = 3.5 and z = 3.25 in the equation (1)

x + 7 + 6.5 = 17.5

x = 17.5 - 13.5 = 4

Now the difference between load of dishwasher that uses least water and the most.

x - z = 4 - 3.25 = 0.75 gallons

Option B is the right answer.

6 0
3 years ago
Please Help me ASAP i need to turn it in, in like 10 min. Please answer the questions in the screenshot ill give u 20 points Tha
Delvig [45]

Answer:

for #1 its the 1st and 4th box

for # 2 it's 13.5 and 20.25

Step-by-step explanation:

1st box - 10 ÷ 5 = 2 and 25 ÷ 5 = 5

4th box - 10 x 2 = 20 and 25 x 2 = 50

you have to make sure that you do the same thing for both sides of the equation

6 x 2.25 = 13.5

9 x 2.25 = 20.25

Dilation is an enlarging or shrinking of a math figure using a specific scale factor

multiply your numbers by that given scale factor to give you your answer of option 2

hope this is right I'm not completely positive about the send one.

4 0
3 years ago
Which of the following is the product for (x+4)(x-2)?
larisa86 [58]

Answer:

A

Step-by-step explanation:

X times x is x squared then x times - 2 is - 2x but 4 times x is 4x. So 4x plus - 2x is 2x. Then 4 times - 2 is - 8 put that all together you'll get x^+ 2+2x-8

6 0
3 years ago
HELP MEEEEEEEEEEEE<br><br><br> (please don't put a link or i don't know)
Leviafan [203]

Answer:

42 i think

Step-by-step explanation:

7 0
2 years ago
Other questions:
  • Estimate the height of a tree using the following measurements:height of the rod:180 cm,length of the shadow of the rod is 116 c
    10·1 answer
  • Which description matches the function represented by the values in this
    11·2 answers
  • What is the slope of the line shown <br>(4, 2) (-4, -2) <br>m=?
    6·1 answer
  • Multiply (x-4) (2x + 3) using the distributive property. Select the answer
    9·1 answer
  • The cost of renting a car is $45/wk plus $0.15/mi traveled during that week. An equation to represent the cost would be
    10·1 answer
  • How many atoms is 4.00 grams of iron<br> (Fe)?
    8·1 answer
  • Please answer quickly, simple geometry
    7·1 answer
  • Need actual help (please hurry)
    10·1 answer
  • Which relationship is described by the equation y=5x
    8·1 answer
  • What type of angle is show​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!