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
dsp73
3 years ago
13

200 students in a high school senior class are surveyed about what majors they intend to declare in college. Of the 200 students

, 80 plan to major in mathematics, 100 plan to major in computer science, and 30 plan to pursue a double major in mathematics and computer science. Using this information, answer each of the following questions. Let M be the event that a randomly selected student plans to major in mathematics and C be the event that a randomly selected student plans to major in computer science. What is P(M), left parenthesis, M, right parenthesis, the probability that a student plans to major in mathematics?
Mathematics
1 answer:
dedylja [7]3 years ago
5 0

Answer:

  • <u><em>P(M) = 0.4</em></u>

Explanation:

<u>1. Build a two-way frequency table:</u>

To have a complete understanding of the scenary build a two-way frequency table.

  • <u>Column and rows:</u>

                                  Major in math    No major in math  Total

Major in CS

No major in CS

Total

  • <u>200 students:</u>

                                  Major in math    No major in math  Total

Major in CS

No major in CS

Total                                                                                      200

  • <u>80 plan to major in mathematics:</u>

                                  Major in math    No major in math  Total

Major in CS

No major in CS

Total                              80                                                   200

  • <u>100 plan to major in computer science</u>:

                                  Major in math    No major in math  Total

Major in CS                                                                           100

No major in CS

Total                              80                                                   200

  • <u>30 plan to pursue a double major in mathematics and computer science</u>:

                                  Major in math    No major in math  Total

Major in CS                  30                                                      100

No major in CS

Total                              80                                                    200

  • <u>Complete the missing numbers by subtraction</u>:

                                  Major in math    No major in math  Total

Major in CS                   30                              70                 100

No major in CS                                                                     100

Total                              80                             120                200

                                  Major in math    No major in math  Total

Major in CS                   30                              70                 100

No major in CS             50                              50                 100

Total                              80                             120                200

<u>2. What is P(M), the probability that a student plans to major in mathematics?</u>

  • P(M) = number of students who plan to major in mathematics / number of students

  • P(M) = 80 / 200 = 0.4
You might be interested in
Stephen had 24 miniature cars
Vitek1552 [10]
Um.... I am confused I do not know what u are asking me.




I am so sorry that I can not help , but isf I knew it I would help.
6 0
3 years ago
Dave is painting a wall in his living room a bright red color. so far, he has painted 1/5 of the wall and has used 1/2 gallon of
uysha [10]
2 and 1/2 gallons of paint because if 2/5 is painted with 1 gallon, then 4/5 would be 2 gallons and the last 1/5 would be half a gallon.
6 0
3 years ago
Find the positive square root of 2 9/49<br>​
yawa3891 [41]
1.47 hope this helps
3 0
2 years ago
Somebody help pls:)))
netineya [11]
Answer: 5.4

--------------------------------------

Explanation:

Angle D = 43 is the given reference angle
side FE = 5 is the side opposite the reference angle (since its the leg furthest away from angle D)

We want to find side DE which is the other leg. This is the adjacent side with angle D as the reference angle

Use the tangent rule

tan(angle) = opposite/adjacent
tan(D) = FE/DE
tan(43) = 5/DE
DE*tan(43) = 5
DE = 5/tan(43)
DE = 5.36184355 <<-- use a calculator here; this is approximate
DE = 5.4 <<-- round to the nearest tenth

That's why 5.4 is the answer

6 0
3 years ago
Make a reasonable estimate for the situation. A snail moves at a speed of 3.395 inches per minute. If the snail keeps moving at
iren [92.7K]

Answer:

Distance = 21.0049 inches

Step-by-step explanation:

Given the following data;

Speed = 3.395 inches per minute.

Time = 6.187 minutes

To find the distance;

Distance = speed * time

Substituting into the equation, we have;

Distance = 3.395 * 6.187

Distance = 21.0049

4 0
3 years ago
Other questions:
  • WHAT IS THE PERCENTS OF 13/50 , 3/5 3/20 5/8 45/90 7/5 19/25
    8·1 answer
  • According to the number line, what is the distance between points A and B?
    14·2 answers
  • I need help answering
    11·2 answers
  • Multiply. <br> Answer as a fraction. Do not include spaces in your answer<br><br> 5 1/6•(-2/5) =???
    10·1 answer
  • A baker is folding up open-topped boxes to package up her baked goods. She has
    15·1 answer
  • Which is the equation of the graphed line written in standard form? y = x x – x minus StartFraction one-half EndFraction y equal
    15·2 answers
  • Sue and oliver share £160 in the ratio 3:5<br> Work out how much more oliver get conpared to cue.
    9·2 answers
  • Please answer number 17 and you will get brainliest
    6·2 answers
  • I need help getting the equation
    5·1 answer
  • PLEASE HELP <br> the answer is not <br> 1/4^-2
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!