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
Brrunno [24]
3 years ago
6

In an honors math class of 25 students, 15 are boys and 10 are girls. On the final exam, 6 boys and 3 girls received a grade of

A. If a student is chosen at
random from this class, what is the probability of choosing a girl or a student who did not receive an A on the exam?
1
0.76
2
0.64
3
0.40
0.28
Submit Answer
Mathematics
1 answer:
postnew [5]3 years ago
7 0

Answer:

Step-by-step explanation:

b=boy

a= a on the exam

b=15

b∩a=6

b'∩a=3

b'∪a'=?

b'∪a'= b'+a'-b'∩a'

a= b∩a+b'∩a (law of total probability) = 9

a'= 25-9 = 16

b'= 25-15= 10

16+10-7=19

19/25= .76

You might be interested in
Here are yesterday's high temperatures (in Fahrenheit) in 12 U.S. cities. 48, 50, 54, 56, 63, 63, 64, 68, 74, 74, 79, 80 Notice
irinina [24]

For the given data set

Minimum = 48

Lower quartile = 55

Median = 63.5

Upper quartile = 74

Maximum = 80

Interquartile range = 19

<h3>Measures of a Data </h3>

From the question, we are to determine the minimum, lower quartile, median, upper quartile, maximum, and interquartile range of the given data set

The given data set is

48, 50, 54, 56, 63, 63, 64, 68, 74, 74, 79, 80

Minimum = 48

Lower quartile = (54+56)/2

Lower quartile = 110/2

Lower quartile = 55

Median = (63+64)/2

Median = 127/2

Median = 63.5

Upper quartile = (74+74)/2

Upper quartile = 148/2

Upper quartile = 74

Maximum = 80

Interquartile range = Upper quartile - Lower quartile

Interquartile range = 74 - 55

Interquartile range = 19

Hence, for the given data set

Minimum = 48

Lower quartile = 55

Median = 63.5

Upper quartile = 74

Maximum = 80

Interquartile range = 19

Learn more on Measures of a Data here: brainly.com/question/15097997

#SPJ1

5 0
2 years ago
A snowboard originally costs $120, but it is on sale for 45% off. If a customer buying the snowboard has a coupon for $15.00 off
kotykmax [81]
51 dollars hope that helps
7 0
3 years ago
Read 2 more answers
When the product of 6 and the square of a number is increased by 5 times the number, the result is 4.
Ira Lisetskai [31]

Answer:

Hope this is correct

5 0
3 years ago
A school club sold 300 shirts. 31% were sold to fifth graders, 52% were sold to sixth graders, and the rest were sold to teacher
Yuri [45]
You would do 300• 31/100 to get 90. I’m pretty sure that’s right
4 0
3 years ago
How much is one troy ounce of silver worth?
alexdok [17]
One troy ounce of silver is worth, $17.67.
HOPE THIS HELPS YOU! ^_^
3 0
3 years ago
Other questions:
  • Someone help me please? giving away 35 points and brainliest (only if right)
    13·1 answer
  • PLEASE RESPONDD!! IT'S TIMED :") The function f(x) = 4x – 0.1x^2 is used to model the
    14·2 answers
  • Could someone help me with this?
    11·1 answer
  • Sammy is on level 40 , which is five times as much as rocky.what islevel rocky on​
    8·2 answers
  • The following table represents the highest educational attainment of all adult residents in a certain town. If a resident who is
    9·1 answer
  • There are 40 boys in 6th grade. The number of girls in 6th grade is 30. Carly says that means the ratio of the number of boys in
    8·2 answers
  • How are the concepts of markup and markdown related to the percent equation?
    8·2 answers
  • A number is less than another number by 7. If their sum is 27,find the number give full step​
    13·2 answers
  • Use the information given to enter an equation in standard form. (6, 10) and (5, 7) are on the line.
    10·1 answer
  • Bart had 36 marbles. he gives all of his marbles to four friends. he gives each friend the same number of marbles. how many ma
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!