answer.
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
eduard
2 years ago
6

(b) we often read that iq scores for large populations are centered at 100. what percent of these 78 students have scores above

100? (round your answer to one decimal place.)
Mathematics
1 answer:
ss7ja [257]2 years ago
4 0
As IQ scores for extensive populaces are focused at 100, the mean = 100. 
There ought to be around half scores above or underneath the mean score since mean and middle is about a similar when the populace is substantial. 
P(x > 100) = P( z> (100 - 100)/sd ) = P(z > 0)= 0.5 
The number of the student who has scored over 100 = 0.5 x 78 = 39 Therefore the answer is 39 students. 
You might be interested in
A sampling interval of 10 was used to select a sample from a population of 5,000. how many elements are to be in the sample? a.
attashe74 [19]
 The answer to this either a or c
5 0
2 years ago
Find the amount of time.<br> I=$450, P=$2400, r=7.5%<br> Help!
faust18 [17]
I = PRT.....rearrange = I / PR = T
I = 450
R = 7.5%...turn to decimal = 0.075
P = 2400

I / (PR) = T
450 / (2400 * 0.075) = T
450 / 180 = T
2.5 = T...so time is 2.5 years, or 2 1/2 years
8 0
2 years ago
Apply the distributive property to factor out the greatest common factor 16g+20h
UkoKoshka [18]

Answer:

4(4g+5h)

Step-by-step explanation:

Factor out the 4.

5 0
2 years ago
A total of $150000 is invested in two funds paying 6.25% and 6% simple interest. If the total interest for the year is $9212.50,
Georgia [21]

Answer:

  • $85,000 at 6.25%
  • $65,000 at 6.00%

Step-by-step explanation:

Let x represent the amount invested at 6.25%. Then the total interest earned is ...

  0.0625x + 0.0600(150,000 -x) = 9212.50

  0.0025x = 212.50 . . . . . . subtract 9000, collect terms

  x = 212.50/0.0025 = 85,000

  150,000 - 85,000 = 65,000 . . . . amount invested at the lower rate

$85,000 is invested at 6.25%; $65,000 is invested at 6%.

3 0
2 years ago
A local concert center reports that it has been experiencing a 15% rate of no-shows on advanced reservations. Among 150 advanced
Doss [256]

Answer: C

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • What two number can you add to get 20 and multiply to get 28
    10·1 answer
  • latrell will rotate △abc 180° about one of the labeled points. latrell says, “the image will only touch the pre-image at exactly
    6·2 answers
  • Elsie bought a video game for $85.00. If the store charges 170% of its cost for the game, how much is the store’s profit?
    15·2 answers
  • The general form of the equation of a circle is x2 + y2 + 42x + 38y − 47 = 0. The equation of this circle in standard form is (x
    14·1 answer
  • Misty and Yesenia have a group of Base Ten Blocks. Misty has six more blocks than Yesenia. Yesenia's blocks represent 17. Togeth
    9·1 answer
  • Which choice is equivalent to the fraction below? (Hint: Rationalize the denominator and simplify.) I NEED HELP HELP PLEASE PLEA
    12·1 answer
  • Which statements are true of the function f(x) = 3(2.5)x? Check all that apply. a) the function is exponentioal b)The initial va
    8·1 answer
  • A 16-inch candle is lit and burns at a constant rate of 0.8 inches per hour. Let t represent the number of hours since the candl
    10·1 answer
  • A 2-column table with 6 rows. The first column is labeled miles driven with entries 27, 65, 83, 109, 142, 175. The second column
    13·2 answers
  • The student senate at a local university is about to hold elections. A representative from the women’s sports program and a repr
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!