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
Ymorist [56]
2 years ago
15

A video game company surveys a random sample of 225 of its best customer and finds that the average gamer spends $406 a year on

games, with a standard deviation of $26. Another company is also interested in the amount game consumers spend, and surveys a random sample of 250 gamers, over all interest levels, and finds that the average gamer spends $250 a year on games, with a standard deviation of $15. Why is the second survey more believable than the first?
Mathematics
1 answer:
Burka [1]2 years ago
8 0
The second survey is more believable because there is randomness in the second rather than the first survey. Since the second company surveyed in all interest levels while the first company only surveyed their best customers. Random sampling like what the second company did helps produce representative samples by removing voluntary response bias and undercover age bias.
You might be interested in
A city's population is increasing at a rate of 2% per year.
Mariana [72]

Based on the information the number of people that will there after 20 years is: d.)  2.97 million.

Using this formula

P(t) = Population ×(1+ rate)^t

Where:

Population=2 million

rate=2%

time=20 years

Let plug in the formula

P(t) = 2×(1+.02)^20

P(t) = 2×(1.02)^20

P(t) = 2×1.485947

P(t) = 2.97 million

Inconclusion the number of people that will there after 20 years is: d.)  2.97 million.

Learn more about population here:brainly.com/question/25630111

6 0
2 years ago
Solve: m-9=3(1/4m+4)-20
FrozenT [24]

Answer: M = -20

Too easy

8 0
3 years ago
HELP ME PLZ I DONT UNDERSTAND THIS
Afina-wow [57]
The corporate team building event will cost $18.00 because $2 multiplied by 6 is $12.00 and $1.00 multiplied by 6 is $6.00 and 6 plus twelve is 18 so it would be $18.00
3 0
3 years ago
Jack has 100 football cards that he wants to put in a photo album. Each page in the album will hold eight cards.
umka2103 [35]
100/8
He needs 12 1/2 pages in the photo album
6 0
2 years ago
Read 2 more answers
Tan^2theta - Sin^2theta = tan^2theta. sin^2theta <br> explain this step<br>​
denis23 [38]

tan²(<em>θ</em>) - sin²(<em>θ</em>) = sin²(<em>θ</em>)/cos²(<em>θ</em>) - sin²(<em>θ</em>)

-- because tan(<em>θ</em>) = sin(<em>θ</em>)/cos(<em>θ</em>) by definition of tangent --

… = sin²(<em>θ</em>) (1/cos²(<em>θ</em>) - 1)

-- we pull out the common factor of sin²(<em>θ</em>) from both terms --

… = sin²(<em>θ</em>) (1/cos²(<em>θ</em>) - cos²(<em>θ</em>)/cos²(<em>θ</em>))

-- because <em>x</em>/<em>x</em> = 1 (so long as <em>x</em> ≠ 0) --

… = sin²(<em>θ</em>) ((1 - cos²(<em>θ</em>))/cos²(<em>θ</em>))

-- we simply combine the fractions, which we can do because of the common denominator of cos²(<em>θ</em>) --

… = sin²(<em>θ</em>) (sin²(<em>θ</em>)/cos²(<em>θ</em>))

-- due to the Pythagorean identity, sin²(<em>θ</em>) + cos²(<em>θ</em>) = 1 --

… = sin²(<em>θ</em>) tan²(<em>θ</em>)

-- again, by definition of tan(<em>θ</em>) --

8 0
3 years ago
Other questions:
  • Dana has n quarters. Ivan has 2 fewer than 3 times the number of quarters Dana has. The expression n + 3 n−2 gives the number of
    8·1 answer
  • Is 5feet greater less or equal to 60 inches
    6·2 answers
  • At the zoo,there were 3times as many monkeys as lions.Tom counted a total of 24 monkeys and lions.How many monkeys were there?
    12·2 answers
  • A group of 6 students was asked, "How many hours did you watch television last week?" Here are their responses:
    8·2 answers
  • Tanner has purchased a car with a loan. His bank now deducts the amount of the monthly payment from his account on the second of
    11·2 answers
  • Max weighs 40 pounds less than his brother Together they weigh 280 pounds how much does his brother weight
    15·2 answers
  • I’d really appreciate some help :)
    8·1 answer
  • 1. How do you find the slope &amp; y-intercept (non-proportional) from a table of x and y coordinates when using the Ti-Nspire?
    6·1 answer
  • Pls help! the function g is defined as follows for the domain given
    10·1 answer
  • A person's blood glucose level and diabetes are closely related. Let x be a random variable measured in milligrams of glucose pe
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!