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
Nat2105 [25]
3 years ago
8

The scores on a quiz are normally distributed. The mean of the quiz is 93 and the standard deviation is 4.2. By using the Empiri

cal rule, what scores fall 1 standard deviation from the mean?
89 and 101

84.6 and 101.4

89.2 and 96.8

88.8 and 97.2
Mathematics
1 answer:
xz_007 [3.2K]3 years ago
6 0

Answer:

any score that lies between 88.8 and 97.2 is within one std. dev. of the mean

Step-by-step explanation:

One std. dev. above the mean would be 93 + 4.2, or 97.2.  One std. dev. below the mean would be 93 - 4.2, or 88.8.

So:  any score that lies between 88.8 and 97.2 is within one std. dev. of the mean.

You might be interested in
I need help on this question please and thank you!
Kay [80]

Answer:

The 2nd one.

Step-by-step explanation:

185 degrees is farther than a straight line, and the 2nd one is the only one like that.

5 0
1 year ago
What is the value of the expression below?<br> -4(5 - 10)' +36
Levart [38]

Answer:

20

Step-by-step explanation:

-4 x (-5) = 20

4 0
2 years ago
A line has the equation 3x–4y–12=0. Write the equation in slope-intercept form.
rjkz [21]
The slope-intercept form: y = mx + b


3x-4y-12=0\ \ \ |+4y\\\\3x-12=4y\\\\4y=3x-12\ \ \ |:4\\\\y=\dfrac{3}{4}x-3
5 0
3 years ago
Read 2 more answers
What's the distance between -10 and 20
Taya2010 [7]

Answer:

30

Step-by-step explanation:

Because its 30 trust me

8 0
3 years ago
If 169 meters is the longest length, then _______ meters is the shortest
jok3333 [9.3K]

Answer: If 169 meters is the longest length, then 154 meters is the shortest length.

Explanation:

The given figure show a box plot.

In a box plot the box is lies between the first quartile Q₁ and third quartile Q₃ . The line between Q₁ and Q₃ represent the median and Q₁ is always less than Q₃.

The end point of the line left side of the box represents the minimum value of the data and the end point of the line right side of the box represents the maximum value of the data.

From the figure we can say that,

Q_1=158

Median=Q_2=163

Q_3=167

Minimum value is 154 and the maximum value is 169.

Since it is given that the 169 meters is the longest length then the shortest length is 154.

5 0
3 years ago
Other questions:
  • Kyah and Jasmine are running in a long distance race. They are running around a track that is 1/5 of km long. Kyah can run 6 lap
    13·1 answer
  • Papi sold candles at the fair. She sold $169.74 on Friday, $235.95 on Saturday and $219.21 on Sunday. What were her average sale
    6·1 answer
  • 3/x^2+5x+6 + x-1/x+2= 7/x+3 solve
    7·2 answers
  • Kevin is trying to find a brown sock in his drawer. He has 16 white socks, 4 brown socks, and 6 black socks. What is the probabi
    12·1 answer
  • Sam has $65 to spend on clothes. He wants to buy a pair of jeans for $29 and spend the rest on t-shirts. Each t-shirt costs $9.
    11·2 answers
  • How can you write the expression 7(b-2) in words?
    6·2 answers
  • I need help with this question.
    6·1 answer
  • Pls help me I’ll mark brainliest!!
    11·2 answers
  • If we want to fit 1000 people in our auditorium and have 25 seats in a row, how many rows do we need?
    15·2 answers
  • Can someone help me pleasee!! question 10 help a girl out :)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!