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
frozen [14]
3 years ago
12

The times a musician spends performing a rock song and a country song are approximately Normally distributed. The rock song has

a mean time of 133 seconds with a standard deviation of 3.5 seconds, and the country song has a mean time of 126 seconds with a standard deviation of 3.3 seconds. If the musician randomly selects 4 times the rock song is played and 3 times the country song is played, what is the probability that the mean time for the rock song is less than the mean time for the country song?
0.0034
0.0365
0.9964
0.9966
Mathematics
1 answer:
VikaD [51]3 years ago
8 0

Answer:

A. 0.0034

Step-by-step explanation:

You might be interested in
How to expand 129,982​
Elza [17]

Step-by-step explanation:

1×100000+2×10000+9×1000+9×100+8×10+2×1

=100000+20000+9000+900+80+2

7 0
2 years ago
Help me does anybody know this?
hichkok12 [17]

Answer:

im pretty sure all you have to do is switch the signs (if its negative it will become positive) but only for the points on the x axis so basically (-12,13) would become (12,13)

6 0
3 years ago
An equation is shown below: −2(4x − 1) − 7 = 5 Which statement shows a correct next step in solving the equation?
LuckyWell [14K]
B. The equation can become −2(4x − 1) = 12 by applying the addition property of equality because we have: <span>−2(4x − 1) − 7 = 5 / + 7 <=> -2(4x-1) = 12;</span>
6 0
4 years ago
Please help; I’m hopeless.
Yuliya22 [10]
Well, you have to find 2 of the same number that add together to make that middle number before the c. Then you have to multiply those 2 identical numbers together to find the value of c!——————————————————————So! For number 10, 7+7 is 14, so 7 and 7 are your two identical numbers.——————————————————————Then you have to multiply them to get c! 7•7=49, so 49 is c.——————————————————————I’ll do 11 for you as well, 12+12=24, and 12•12=144, so 144 is c.
3 0
4 years ago
Could triangle ABC be congruent to ADC by SSS? Explain
max2010maxim [7]

Answer: it’s C

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following inequalities matches the graph? graph of an inequality with a solid line through the points (0, −2) and (
    12·2 answers
  • Round 223 to the nearest 10
    13·1 answer
  • Quiet on 13 what's the answer for elapsed time
    8·2 answers
  • Please check to see if I got <br> #6 correct I don't think I did but I'm not sure how to do it.
    9·1 answer
  • Can someone help with this pleasee?
    7·1 answer
  • to solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second
    5·2 answers
  • 1) What is the slope of the line in the graph show below?
    9·1 answer
  • THIS IS MULTIPLE CHOICE
    12·1 answer
  • A room is an exclusive Dubai hotel costs $× pe4 night. The price then changes to $4370 per night after a decrease of 5% and a in
    12·1 answer
  • Find the cosine of ∠J.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!