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
otez555 [7]
2 years ago
12

According to​ psychologists, IQs are normally​ distributed, with a mean of 100 and a standard deviation of 15 . a. What percenta

ge of the population has IQs between 85 and 100 ​?
Mathematics
1 answer:
Angelina_Jolie [31]2 years ago
3 0
Answer: 34%.

By definition of normal distribution, ≈68% of the data is within 1 standard deviation of the mean. Therefore 68% of IQs are between 85 and 115, and half of that is on the lower end, 85 to 100.
You might be interested in
A line passes through the point (2, 3) and has a slope of -2. Which is the equation of the line in point-slope form?
Lelu [443]
The equation of the line would be y=-2x+9

5 0
3 years ago
Consider a square and a regular hexagon (a 6-sided figure with sides of equal length). One side of the square is 4 feet longer t
Reil [10]
Notice the picture below

now, we know their perimeter are the same for both

thus 4(a+4) = 6a

solve for "a"

6 0
2 years ago
Please answer the questions in pic
Ahat [919]

Answer: BRAINLIEST?

2.>

4.<

6.<

8. >

Step-by-step explanation:

3 0
2 years ago
The diameter of a circle is 19 7/8". What is the circumference (to 2 decimal places)?
Alekssandra [29.7K]

Answer:

62.41

Step-by-step explanation:

19 7/8= 19.875

C= pie x d

C= 3.14 x 19.875

C= 62.4075

C= 62.41 (if you want 2 decimal places)

3 0
3 years ago
Harrison has a total of 30 red and green bowling balls at his bowling alley. Each red ball weighs 8lbs and each green ball weigh
makkiz [27]
The answer is on the paper

4 0
3 years ago
Other questions:
  • the five performers who will present their comedy acts this weekend at a comedy club how many different ways are there to schedu
    11·2 answers
  • What are the first and last deciles of the standard Normal distribution?
    14·1 answer
  • Anna buys groceries for her family. Hamburger meat is $3.38 per pound sweet potatoes are $0.79 each and hamburger rolls are are
    5·1 answer
  • How do you draw the unit circle in radians when the denominator is 5?
    15·1 answer
  • 40% of a nurse’s time is spent dispensing medicine to patients. If 16 hours per week is spent dispending medicine, how many hour
    10·1 answer
  • What is the measure of SRT? 69 79 99 or 101 degrees
    5·2 answers
  • An aquarium is being filled at a rate of 2.5 inches per second. The equation y=2.5x is used to determine the height of the water
    9·1 answer
  • How to do this problem?
    12·1 answer
  • Deshawn has two bags of marbles. The first bag has 2 blue, 3 orange, and 5 red. The second bag has 4 pink, 10 blue, and 6 brown.
    7·1 answer
  • Tell wether the angles are adjacent or vertical. Then find the value of x.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!