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
elena55 [62]
3 years ago
6

A bag contains 40 cards numbered 1 through 40 that are either red or blue. A card is drawn at random and placed back in the bag.

This is done four times. Two red cards are drawn, numbered 31 and 19, and two blue cards are drawn, numbered 22 and 7. Your friend concludes that red cards and even numbers must be mutually exclusive.Is your friend correct? Explain.
Mathematics
1 answer:
Oksana_A [137]3 years ago
5 0

Answer:

Step-by-step explanation:

Given that a bag contains 40 cards numbered 1 through 40 that are either red or blue. A card is drawn at random and placed back in the bag.

This is done four times. Two red cards are drawn, numbered 31 and 19, and two blue cards are drawn, numbered 22 and 7.

From the above we cannot conclude that red cards and even numbers are mutually exclusive

Just drawing two red cards and because the two happen to be odd we cannot generalize the red cards have odd numbers.

This might have occurred due to simple chance from a comparatively large number of 40 cards.

Suppose say we have red cards 20, and 19 red 1 blue.

Then drawing 2 from 19 red cards have more probability and this can occur by chance.

So friend's conclusion is wrong.

You might be interested in
A pole 9 feet tall is used to support a guy wire for a tower, which runs from the tower
STALIN [3.7K]

Answer:

42 feet

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
A juice company produces 8,064 cartons of juice in 21 days. Each day, they produced the same number of cartons and delivered tho
KatRina [158]
8064 cartons in 21 days......8064/21 = 384 cartons per day

the cartons were delivered in cases of 6.....384 / 6 = 64 cases

each of 16 coffee shops received an equal number of cases..
64/16 = 4.....so each coffee shop received 4 cases per day <==
7 0
2 years ago
Read 2 more answers
Please help
MrRa [10]

Answer:

About 99.7% of births would be expected to occur within 51 days of the mean pregnancy​ length

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Standard deviation = 17.

About what percentage of births would be expected to occur within 51 days of the mean pregnancy​ length?

51/17 = 3.

So, within 3 standard deviations of the mean.

About 99.7% of births would be expected to occur within 51 days of the mean pregnancy​ length

4 0
3 years ago
help it is due today and not links or files of downloads of anything like that just type in your answer plz and thank u :)
pantera1 [17]
The answer should be x=4
4 0
3 years ago
Read 2 more answers
Susan decided to start a bracelet business. She spent $17.75 on supplies for her
Snezhnost [94]

Answer:

Given that:

Susan spent on supplies = $17.75

Earning of june = 24 * $3.25

Earning of June = $78

1/4 of earning = 1/4 * 78

1/4 of earning = $19.5

So Susan will set $19.5 aside for supplies of next month and remaining amount she will have is : 78 - 19.5 = $58.5

i hope it will help you!

6 0
3 years ago
Other questions:
  • What is the surface are of the container of oatmeal shown below? use 3.14 for pi
    13·1 answer
  • Joshua has 7 different varieties of tulips in his garden. If he has 385 tulip plants in total and equal numbers of each variety,
    12·1 answer
  • 1. Over the next two days, Clinton Employment Agency is interviewing clients who wish to find jobs. On the first day, the agency
    12·1 answer
  • What is the length of AA, BB, CC, DD.
    10·2 answers
  • What is the simplified form of 2(3x+5)-30+7x_4
    13·1 answer
  • Please help me all if this or anything you can do thank you
    15·1 answer
  • 10.1 and 10.15 witch one is greater
    9·2 answers
  • Find (f+g)(x) if f(x)=2/x+1 and g(x)=x-2
    14·1 answer
  • Square root of -6 times square root of -12 times square root of -5
    11·1 answer
  • Madelyn is blocking off several rooms in a hotel for guests coming to her wedding.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!