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
In-s [12.5K]
3 years ago
15

A population of n ????20 scores has a mean of???????? 15. one score in the population is changed from x ???? 8 to x ???? 28. wha

t is the value for the new population mean?
Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0

20 has been added to the total of scores, so the new mean for the 20 scores will be 20/20 = 1 higher than it was.

The new population mean is 15+1 = 16.

You might be interested in
What is the simplified form of the following expression? 5sqrt 8-sqrt18-2sqrt2
spayn [35]

Answer:

5 sqrt2.

Step-by-step explanation:

sqrt8 = sqrt4 * sqrt2 = 2 sqrt2

sqrt18 = sqrt9 * sqrt2 = 3 sqrt2

So simplifying:

5sqrt 8 - sqrt18 - 2 sqrt2

= 5*2sqrt2 - 3 sqrt 2 - 2 sqrt2

= 10 sqrt2 - 5 sqrt2

= 5 sqrt2 (answer).

7 0
3 years ago
Read 2 more answers
Evaluate the expression 81-8^2
Tpy6a [65]

Answer:

17

Step-by-step explanation:

Do the exponent first, then subratct it to 81

7 0
3 years ago
Oliver has a bag that contains pineapple chews, lemon chews, and peach chews. He performs an experiment. Oliver randomly removes
Shtirlitz [24]

The probability that the next chew Oliver removes from the bag will be peach chew as a percent to the nearest whole number will be 13%.

<h3>What is probability?</h3>

Its basic premise is that something will almost certainly happen. The percentage of favorable events to the total number of occurrences.

Oliver has a bag that contains pineapple chews, lemon chews, and peach chews.

He performs an experiment.

Oliver randomly removes a chew from the bag, records the result, and returns the chew to the bag.

Oliver performs the experiment 23 times.

The results are shown below:

A pineapple chew was selected 17 times.

A lemon chew was selected 4 times.

A peach chew was selected 2 times.

Then the probability that the next chew Oliver removes from the bag will be peach chew as a percent to the nearest whole number will be

Total event = 24 times

Favorable event = 3 times

Then we have

P = 3 / 24 x 100

P = 0.125 x 100

P = 12.5%

P ≅ 13%

More about the probability link is given below.

brainly.com/question/795909

#SPJ1

8 0
2 years ago
Scott collects hats. He has 65 hats an plans on buying 80 per year.
kicyunya [14]

Answer:

80x+65 2.465 3.865

Step-by-step explanation:

x being the number of years so in ten years he will have 80x10=800+65=865

80x5=400+65=465 so 5 is the number of years it would take

and i do not understand number 1 but i put a formula just in case that was it

7 0
3 years ago
In &lt;ABC angle A is 41°. Side b is 65cm, side c is 50cm and side a is unknown. Solve for side a.
lara31 [8.8K]
Side a is 50cm long.
8 0
3 years ago
Other questions:
  • Need help ASAP! Simplify the expression so there is only one positive power for the base, -5. (The questions/answers are in the
    9·2 answers
  • If the perimeter is 560 yards what is the dimensions
    9·1 answer
  • Prove that the eigenvalues of a matrix squared are greater than the matrix eigenvalues
    11·1 answer
  • I need help due tomorrow
    15·1 answer
  • The total cost is y = 150 + 55x. Which Statement represents the meaning part of the function
    14·1 answer
  • Sheila was given $30.00 for her birthday and spent $18.79 on a CD. How much was her change?
    14·2 answers
  • HELP SABRINA ;) ?!!!
    14·1 answer
  • Find the ratio of 15 cm and 9 mm​
    13·2 answers
  • How to slove this one?
    12·1 answer
  • The link is attached do your best to figure it out.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!