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
sesenic [268]
2 years ago
10

Suppose that IQ scores have a bell-shaped distribution with a mean of 101 and a standard deviation of 12. Using the empirical ru

le, what percentage of IQ scores are between 77 and 125?
SAT
1 answer:
7nadin3 [17]2 years ago
3 0

95.44% IQ scores are between 77 and 125

We're given,

Mean (a)=101

standard deviation (b)=12

To find : P[77 < x < 125]

Using Empirical Rule:

∴ P[77 < x < 125]  = P[\frac{77-101}{12} < \frac{x-a}{b} < \frac{125-101}{12}]\\

=P[-2 < z < 2]\\

=P[Z < 2]-P[Z < -2]\\

=0.9772-0.0228\\

=0.9544 =95.44% (approx)

Learn more about Empirical rule of IQ calculation here:

brainly.com/question/13077017

#SPJ10

You might be interested in
Ryan earned $5 per hour raking leaves he eared $35 how many hours did he rake leave
Alex Ar [27]
The answer is 7 because if you divide 35 by 5 you get 7


3 0
3 years ago
Read 2 more answers
What was the purpose of the missouri compromise brainly
Andrew [12]

The purpose of the Missouri Compromise was to keep a balance between the number of slave states and the number of free states in the Union. It allowed Missouri to enter as a slave state at the same time Maine entered as a free state, thus maintaining a balance in numbers of free and slave states.

6 0
3 years ago
What is a symptom of test anxiety?
Nataliya [291]

Feelings of anger, fear, helplessness and disappointment are common emotional responses to test anxiety.

8 0
3 years ago
Read 2 more answers
What do you believe is the primary distraction for beginning college students that leads to procrastination?
marin [14]
Maybe the factor that they are all on their own and they don’t have to be pushed by their parents to do the work or the fact that they can choose to go to parties and do hw later
5 0
3 years ago
Read 2 more answers
Everyone just needs to know that...
ehidna [41]

Answer:

thx dude

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • If you are charged in a crash with injuries and are driving a motorcycle, you are _______________ for any bodily injuries and pr
    15·1 answer
  • What is hypodermic needle theory?
    9·1 answer
  • What kind of questions are on here?
    9·1 answer
  • ...................................................................................
    5·2 answers
  • A student is using this table to generate ideas for an essay on a perfect world. A 3-column table with 2 rows. The first column
    7·1 answer
  • GIVING BRAINLIEST
    12·2 answers
  • 7 men have 7 wives. Each man and each wife have 7 children.
    7·2 answers
  • Which african region do historians know the most about.
    14·1 answer
  • All of the following statements are true about bias except.
    5·1 answer
  • Casey is looking for a free, open-source RDBMS for his company. Which of the following best meets these requirements
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!