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
Alchen [17]
2 years ago
12

John and Beth plan to visit a bookstore. Based on their previous visits to this bookstore, the probability distributions for the

numbe of'boks they will buy is given below. Number of books John wi buy Probability 0.50 0.100.250.15 Number ofbooks Beth will buy 023 Probability 025 0.45 0.10 020 Assuming that John and Beth mnke their decisions to purchase books independently, what is the probability that a total of 0 books are purchased? a) 0.8750 b)0.6250 c) 0.2500d) 0.1250
Mathematics
1 answer:
lora16 [44]2 years ago
8 0

Answer:

D) 0.1250

Step-by-step explanation:

Let P(J) = Probability of John to purchase 0 books

Let P(B) = Probability of Beth to purchase 0 books

P(J∩B) = Probability that both john and Beth will purchase 0 books .ie. a total of 0 books is purchased.

Since the decisions to purchase books are two independents events,

P(J∩B) = P(J) * P(B)

P(J) = 0.5

P(B) = 0.25

P(J∩B) = 0.5 * 0.25

P(J∩B) = 0.125

You might be interested in
HELP ME PLEASE! I need to find the Interquartile range of : 0,0,0,1,1,3,3,3,4,4,4,6,6,7,7,7,8,8,9,10
Lana71 [14]

Answer:

The interquartile range is 5

4 0
2 years ago
46 cents is what fraction of a dollar
Vikentia [17]
Since there are a 100 cents in a dollar. the 100 is the denominator.
46/100, reduce; 23/50, can't be reduced any further. so 23/50 is the fraction. 
7 0
2 years ago
Read 2 more answers
What is the slope of the line that goes through (-5,5) and (5,-7)
ludmilkaskok [199]

Answer:

A. -1/5

Step-by-step explanation:

-7-(-5) /5-(-5)

= -7+5 / 5+5

= -2/10

-1/5 option A

8 0
3 years ago
Read 2 more answers
My question got deleted so I'll post these into two separate
Agata [3.3K]

Answer:

see below

Step-by-step explanation:

1 million

1,000,000 seconds * 1 hour/ 3600 seconds * 1 day/ 24 hours * 1 year / 365 days

.031709792 years

Rounding to 3 decimal places

.032 years

50 years * 365 days/ 1 year * 24 hours/ 1 day * 3600 second / 1 hour    

1577000000 seconds    

46 inches * 1 ft/ 12 inches *  1 mile/5280 ft

0.000726 miles

8 0
3 years ago
PLEASE HELP ASAP!!!!! please help me!!
mash [69]

Answer:

a 4x + 10  i think

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • How do I solve this<br> 2x2+ 2x2 -2+2x2=
    14·2 answers
  • What is the answer to the attachment
    10·1 answer
  • Caroline bought 20 shares of stock at 10 1/2, and after 10 months the value of the stocks was 11 1/4. If Caroline were to sell a
    6·1 answer
  • What is the value of log2 81?
    10·1 answer
  • Please help with this question. (Explain if you can)
    5·2 answers
  • I have to solve each problem and round to the nearest tenth. ​
    12·1 answer
  • Reflect the figure over the line x =
    14·1 answer
  • What is the equation of the line in slope-intercept form?
    6·1 answer
  • Rename the fraction 2/5 using tenths and hundredths​
    15·1 answer
  • 60PTS Which expression is equivalent to 3^2 x 3^-5
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!