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
yawa3891 [41]
3 years ago
10

The average amount that a college student spends on a textbook is $205. What is the probability that a students spends between $

10 and $310
Mathematics
1 answer:
garri49 [273]3 years ago
5 0

Complete question :

The average amount that a college student spends on a textbook is $205 with a

standard deviation of $35. What is the probability that a student spends:

A. between $10 and $310?

Answer:

0.999

Step-by-step explanation:

Mean, m = 205 ; Standard deviation, s = 35

Z = (x - m) / s

x = 310

Z = (310 - 205) / 35 = 3

P(z < 3) = 0.99865

x = 10

Z = (10 - 205) / 35 = - 5.57

P(Z < - 5.5)

P(z < 3) - P(z < - 5.5)

0.99865 - 0

= 0.999

You might be interested in
Decompose 2/6 into 4 equal lengths
anyanavicka [17]
I'm not 100% sure, but I'm pretty sure it's 1/12, 1/12, 1/12, 1/12
4 0
3 years ago
In the figure below, angle y and angle x form vertical angles. Angle x forms a straight line with the 50° angle and the 40° angl
Musya8 [376]

Answer:

angle Y = 90 degrees

Step-by-step explanation:

Since it is stated that angle x forms a straight line with the 50 and 50 degree angles, and that angle x is vertical to angle y, we can do 40+50+y=180 to find angle Y.

8 0
3 years ago
A line's y-intercept is 8, and its slope is 2. What is its equation in slope-intercept form? Write your answer using integers, p
lisov135 [29]
The correct answer is y=2x+8
6 0
2 years ago
Read 2 more answers
Pleas help me with this
Pavel [41]
I think it is 6/16 because if you add 1/4 with 5/12
7 0
3 years ago
Read 2 more answers
Find the 107 terms of sequence -9,-5,-1,3,7​
Nikitich [7]

Answer:

415

Step-by-step explanation:

the nth term of the sequence is -13 + 4n

the sequence is an arithmetic progression with nth term a + (n - 1)d

a = -9, d = a5- a4 = 7 -3 =4

nth = -9 + (n -1) 4

       = -9 + 4n -4

       = -13 + 4n

hence the 107th term; -13 + 4*107

                                      -13 + 428 = 415

6 0
3 years ago
Other questions:
  • Complete the inequality.<br><br> 11/20 ___ 55%<br><br> &lt;<br> =<br> &gt;
    12·1 answer
  • Bradley bought 2 cakes for his class Valentines's party. There are 23 students in his class. How much cake will each student rec
    6·1 answer
  • How do you factor this?<br> 2z^2-12z+10=0
    13·2 answers
  • (3x^3/2. y^3÷ x^2 y^-1÷2)-2​
    11·1 answer
  • I think it’s either B or D. Please help
    10·2 answers
  • I Need Help , Help Me Out Please !!!!
    9·1 answer
  • There are 25 students acting in a high school play. They make up 2% of the high school students. Hoy many students attend at the
    15·2 answers
  • PLS HELP ME WILL GIVE BRAIN THING
    11·2 answers
  • a fair cube has 2 red sides, 2 blue sides, and 2 green sides what is the probability of rolling red or blue
    8·1 answer
  • 21. To find a baseball pitcher's earned run average (ERA), you can use the formula Ei=9r, in which E represents ERA, i represent
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!