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
timofeeve [1]
3 years ago
12

Which of the following scenarios demonstrates sampling bias? (A) To estimate the ethnic background distribution of residents of

his town, Adam collects data from 1000 randomly selected town residents by using a random number generator. (B) Lisa wants to estimate the male to female ratio of the residents of her city. She collects data by recording the sex of every soth resident after selecting a random starting point on a list of residents (C) Jean wants to estimate the mean amount of money spent on clothes per week by mall shoppers. She collects data from every 10th person entering a clothing store at the mall.(D) To estimate the mean number of classes that students take at his university, Frank collects data from a randomly selected proportionate number of students from each grade level.
Mathematics
1 answer:
ankoles [38]3 years ago
6 0

Answer:

Option C.

Step-by-step explanation:

Sampling bias is a problem during the initial data gathering step of a survey.

When the first step is wrong, then the survey cannot produce non biased results.

The problem occurs when the design of the study is wrong the data collection procedure is wrong.

So, here answer seems C, because the starting point is not selected at random in this survey.

(C) Jean wants to estimate the mean amount of money spent on clothes per week by mall shoppers. She collects data from every 10th person entering a clothing store at the mall.

You might be interested in
The Numbers of Vips of flour varíes directly as the Number of rolls made four cups of flour are necedad to make 24 rolls.How muc
Vedmedyk [2.9K]

Answer:

6

Step-by-step explanation:

If you half 24=12 4=2 so you are that to it so you need 6 cups to make 36

3 0
2 years ago
Which statement regarding variable overhead variance analysis is true? The variable overhead efficiency variance is exactly the
Drupady [299]

Answer:

J

Step-by-step explanation:

6 0
2 years ago
you put $1,200. in a savings account for four years at 5.6%. what is the total amount in the account after the four years
Greeley [361]

Answer:

you would have 1,194.4

Step-by-step explanation:

i subtracted.

4 0
3 years ago
The graph of an exponential function passes through (1, 10) and (4, 80). Find the function that describes the graph.
svetlana [45]

Answer:

  • y = 5*2ˣ

Step-by-step explanation:

<u>Exponential function:</u>

  • y = abˣ

<u>Ordered pairs given:</u>

  • (1, 10) and (4, 80)

<u>Substitute x and y values to get below system:</u>

  • 10 = ab
  • 80 = ab⁴

<u>Divide the second equation by the first one and solve for b:</u>

  • 80/10 = b³
  • b³ = 8
  • b = ∛8
  • b = 2

<u>Use the first equation and find the value of a:</u>

  • 10 = a*2
  • a = 5

<u>The function is:</u>

  • y = 5*2ˣ
4 0
2 years ago
Read 2 more answers
A triangle has a base of 54 cm. The height is unknown. Complete the equation that can be used to find the area, A, of the triang
Nookie1986 [14]

Answer:

Step-by-step explanation:

area=1/2×base×height

A=1/2×54×h=27h

4 0
3 years ago
Other questions:
  • Hilary is given the pattern 2, 4, 6, 8, 10,... on her test. She has to find the 50th term of the pattern. To do so she needs to
    15·2 answers
  • NEED HELP ASAP! The base of a fish tank is 8 in. by 15 in. by 12 in. The tank is 80% filled with water. How many cubic inches of
    7·1 answer
  • a recipe calls for a total of 3 2/3 cups of flour and sugar. if the recipe calls for 1/4 cup.of sugar, how much flour is needed?
    13·1 answer
  • Complete the following proof.
    6·2 answers
  • Find the value of x.
    7·1 answer
  • Write an equation in slope-intercept form for the line that passes through the given point and is parallel to the following equa
    5·1 answer
  • Which set of ordered pairs does not represent a function? {(-3, -3),(-6, -7), (6,-3), (–9, 2)} {(8,–8), (-9,5), (9,-2), (-2,-8)}
    11·1 answer
  • Find the indicated limit, if it exists. ​
    6·1 answer
  • Given the line 2x + 3y = 5, write an equation for a line in slope intercept form that is parallel
    10·1 answer
  • Josie's best friend is getting married and she wants to buy her something from her online wedding
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!