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
uranmaximum [27]
3 years ago
5

In a certain county in​ 2013, it was thought that​ 50% of men 50 years old or older had never been screened for prostate cancer.

Suppose a random sample of 200 of these men shows that 120 of them had never been screened.
a. What is the observed frequency of men who said they had not been​ screened?b. What is the observed proportion of men who said they had not been​ screened?c. What is the expected number in the sample to say they had never been screened if​ 50% is the correct​ rate?
Mathematics
1 answer:
joja [24]3 years ago
8 0

Answer:

120,0.60,100

Step-by-step explanation:

Given that in a certain county in​ 2013, it was thought that​ 50% of men 50 years old or older had never been screened for prostate cancer.

Suppose a random sample of 200 of these men shows that 120 of them had never been screened.

a) the observed frequency = 120

b) The observed proportion of men who said they had not been​ screened

=\frac{120}{200} \\=0.60

c) Expected number in the sample to say they had never been screened if​ 50% is the correct​ rate

= np

= 200*0.50=100

You might be interested in
Pls help me with homework if not all some answers pls thanks.
Stella [2.4K]

Answer:

Part A: no because there is more dye this time so it will make a dark purple.

Part B: if you use a lot of any color it alway become darker for example if you use all the markers you have it will not tern into a white it will tern to a black and get darker.

Step-by-step explanation:


5 0
3 years ago
ANSWER ASAP (17 points)
elixir [45]

Answer:

A.) x > 50

Step-by-step explanation:

hopefully my answer helps! ♡

(if my answers helped you please tell me, therefore I know.. that I did them correctly or incorrectly. anyways, have a great day/night!)

3 0
3 years ago
Read 2 more answers
Question 7 A number cube with faces labeled from 1 to 6 will be rolled once. The number rolled will be recorded as the outcome.
QveST [7]

Answer:

1) S=\{1,2,3,4,5,6\}

2) O=\{1,3,5\}

Step-by-step explanation:

Given : A number cube with faces labeled from 1 to 6 will be rolled once. The number rolled will be recorded as the outcome.

To find : Give the sample space describing all possible outcomes. Then give all of the outcomes for the event of rolling an odd number. If there is more than one element in the set, separate them with commas ?

Solution :

A number cube with faces labeled from 1 to 6 will be rolled once.

The sample space describing all possible outcomes is given by

S=\{1,2,3,4,5,6\}

All of the outcomes for the event of rolling an odd number is given by

O=\{1,3,5\}

6 0
3 years ago
Walmart closed at $72 per share on Tuesday with a net change of +.95. At what price did Walmart close on Monday?
fenix001 [56]

Answer:32

Step-by-step explanation: manage by hours of work and pay you’ll come to 32

7 0
3 years ago
Can ya help me please. i need it
ankoles [38]

Answer: Since I don't really understand the question it's asking, I would assume that the answer for no. 1 is Swiss, and the answer for no. 2 is Cheddar. I know it's not completely an accurate assumption, and it might be wrong, but that's just what I think it'd be.

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • HELP PLZ HOW DO U DO THIS
    14·1 answer
  • HELPPPPPPPPPPPPPPP
    11·2 answers
  • Which of the following is NOT a
    11·1 answer
  • What is the first quartile of this data set? 11, 12, 15, 16, 17, 19, 22, 24, 29, 33, 38
    12·1 answer
  • Jayden and Caden share a reward of $140 in a ratio of 2:5. What fraction of the total reward does Jayden get
    13·1 answer
  • When Steven bought a new tablet, he borrowed $1,200 at a rate of 18% for 9 months from his parents. How much does he need to pay
    10·1 answer
  • What is $281.875 rounded to the nearest tenth?
    14·2 answers
  • How many milermiters are they in a centermeter ​
    6·1 answer
  • Can anyone plz help me plz:
    8·1 answer
  • Find the equation of the line.<br> Use exact numbers
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!