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
mars1129 [50]
4 years ago
9

Jane is taking two courses. The probability she passes the first course is 0.7. The probability she passes the second course is

0.8. The probability she passes at least one of the courses is 0.9. a. What is the probability she passes both courses?
Mathematics
1 answer:
-Dominant- [34]4 years ago
4 0

Answer: p = 0.56

Step-by-step explanation: from the question, probability she passed the first course = 0.7

Probability she passed the second course = 0.8

Probability she passes both courses means probability she passes the first course "and" probability she passes the second course.

Probability she pass both courses = 0.7 * 0.8 = 0.56

Note that "and" in probability means multiplication.

You might be interested in
Explain how you would use fraction bars to find the quotient of 10/12 divided by 4/6 What is the quotient?
Lisa [10]
Divide 10/12 by two same thing with 4/6 and you should get the simplified fractions
4 0
3 years ago
A survey of a group’s viewing habits over the last year revealed the following
Tom [10]

Answer:

0.52

Step-by-step explanation:

The computation of the percentage of the group in which none of the three sports watched is shown below:

= gymnastic percentage + baseball percentage + soccer percentage - gymnastic & baseball percentage - baseball & soccer percentage - gymnastic & soccer percentage + three sports percentage

= 0.28 + 0.29 + 0.19 - 0.14 - 0.12 - 0.18 + 0.08

= 0.48

Now the percentage is

= 1 - 0.48

= 0.52

7 0
3 years ago
cybil flips a coin and rolls a fair number cube at the same time. What is the probability that she will toss tails and roll a nu
IRISSAK [1]

Answer:

\frac{1}{6}

Step-by-step explanation:

Flipping a coin and rolling a number cube are both independent events. Independent events do not rely on the outcome of any previous events.  This means that whatever you flip on the coin will have no effect on whatever you roll on the number cube and each flip of the coin or roll of the cube has the same probability as the flip or roll before.  

The probability of getting tails on a coin toss is: \frac{1}{2}

The probability of getting a number less than 3 (so 1 or 2) on a number cube is: \frac{1}{3}

Since we are combining these events, we need to multiply the fractions together to get our overall probability:

\frac{1}{2}*\frac{1}{3}=\frac{1}{6}

8 0
3 years ago
For each bag belong, describe the likelihood of picking a black marble
liq [111]
In the first bag, picking a black marble would be impossible.

The second bag would be likely.

The third bag would be unlikely.

hope this helps!
3 0
3 years ago
What is the smallest angle???!
pishuonlain [190]

The smallest angle is an acute angle. You remember this by thinking "This is a cute and tiny angle"

8 0
3 years ago
Read 2 more answers
Other questions:
  • Explain the general steps to adding any two polynomials.
    8·1 answer
  • Find the circumstance of a CD that has a radius of 6 cm use pi' =3.14
    14·1 answer
  • Will mark brainliest if correct! :)
    11·1 answer
  • R^2+15r+56=0 <br> Quadratics factoring
    15·1 answer
  • Please help!! 15 points!
    10·2 answers
  • Find the slope of the line that goes through the two points below.
    14·1 answer
  • You buy a new computer for $700. The value of the computer decreases by 20% annually. About when will the computer have a value
    14·1 answer
  • This question is confusing
    8·2 answers
  • Identify the matrix transformation of ΔMNO, which has coordinates M(1, 3),N(5, 2), and O(3, −3), for a translation 2 units left
    15·1 answer
  • There are 150 students in the sixth grade class. Of these students, 12 students write left-handed. What percentage of the sixth
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!