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
Slav-nsk [51]
3 years ago
13

Suppose you are conducting a survey regarding activity level of children in the LA school district. you obtain a cluster sample

of 16schols within the la school district and sample all sophomore students in the randomly selected schools. The survey is administered by the parents. THE SURVEY HAD BAIS (sample, response or nonresponse)
Mathematics
1 answer:
loris [4]3 years ago
7 0
<span>The survey had a sample and response bias. The survey only randomly selected sophomore students, when it needed to be a thorough survey of children in the LA school district, so the sample size is neither large enough or relevant. Secondly, because the survey was administered by the parents of the students, the students surveyed will be more likely to over-report their activity level.</span>
You might be interested in
Arturo, Pedro y Jorge son hermanos y duermen en la misma habitación. Su padre compró pintura para que entre los tres pinten su c
mr Goodwill [35]

Answer:

Tanto Pedro como Jorge deberán pintar 1/4 de la habitación cada uno.

Step-by-step explanation:

Dado que el cuarto entero es igual a 1, y que Arturo por ser el mayor de los hermanos tiene que pintar 1/2 de él, la parte que falta pintar es igual a 1/2 restante.

De ese 1/2, los hermanos menores, Pedro y Jorge, deben pintar dicha fracción en partes iguales. Por lo tanto, dado que (1/2) / 2 es igual a 1/4, la fracción que tanto Pedro como Jorge deberán pintar es de 1/4 de la habitación.

4 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP WILL GIVE BRAINLIEST!!!!!!
AlexFokin [52]
A) The two line plots are attached.

B) In order to calculate the mean, you have to sum all the values and divide it by the number of values:
m(MSH) = (34 + 34 + 30 + 30 + 30 + 28 + 28 + 26) ÷ 8 
              = 240 ÷ 8
              = 30

m(RM) = (40 + 38 + 36 + 36 + 36 + 36 + 34 + 32) ÷ 8
           = 288 ÷ 8
           = 36

In order to calculate the mean absolute deviation (MAD), you need to calculate the absolute values from the mean, sum them up and divide it by the number of values; the absolute values of the difference from the mean are:
MSH = <span>{|34-30|, |34-30|, |30-30|, |30-30|, |30-30|, |28-30|, |28-30|, |26-30|}
        = </span>{4, 4, 0, 0, 0, 2, 2, 4<span>}

RM = </span><span>{|40-36|, |38-36|, |36-36|, |36-36|, |36-36|, |36-36|, |34-36|, |32-36|}
     = </span>{4, 2, 0, 0, 0, 0, 2, 4<span>}

Therefore,
MAD(MSH) = (</span>4 + 4 + 0 + 0 + 0 + 2 + 2 + 4) ÷ 8
                   = 16 ÷ 8
                   = 2

MAD(RM) = (4 + 2 + 0 + 0 + 0 + 0 + 2 + 4) ÷ 8
                = 12 ÷ 8
                = 1.5

C) In order to calculate the mean-to-MAD ratio, you need to simply divide the mean by the MAD:
r(MSH) = 30 ÷ 2 = 15

r(RM) = 36 ÷ 1.5 = 24

D) We can say that in Mount St Helens NVM elk antlers pairs are lighter but with a bigger variability (which means that they tend to be weight differently from each other), while in Rocky Mountain NP elk antlers pairs are heavier, but with less variability (which means that they tend to be similar to each other).

7 0
3 years ago
Read 2 more answers
114 is the product of dianes age and 6 use the variable d to represent diane age​
ss7ja [257]

Answer:

D= 19

Step-by-step explanation:

114 ÷ 6 is 19

6 0
3 years ago
30 treadmils to 36 elliptical machines
rewona [7]

Answer:

5/6 is the simplest form

Hope that helps

5 0
3 years ago
Barbara mixes 54 ounces of granola and 36 ounces of raisins.She divides the mixture into 6 ounce servings.How many servings does
Sindrei [870]
Hello!

If Barbara mixes 54 ounces of granola and 36 ounces of raisins, the overall mixture will equal 90 ounces. In order to find the amount of servings that Barbara makes, we must divide the total number by the other number given - 6. 
Because Barbara wants to divide the mixture into 6 ounce servings, we will divide 90 by 6. 
90/6=15

The answer to your question is "Barbara made 15 6-ounce servings."

I hope this helps you! Have a great day!
6 0
3 years ago
Other questions:
  • Find an equation of the sphere with center (4, −12, 8) and radius 10. use an equation to describe its intersection with each of
    13·1 answer
  • Which expression is equivalent to 4h divide 5
    5·1 answer
  • Ali wants to buy a piano. The piano measures 19/4 ft long. She has a space 5ft long for the piano in her house. Does she have en
    10·1 answer
  • Do you lucky town lottery has a jackpot of 4.5×10^7 dollars. If Shirley and seven of her closest friends share the prize, how mu
    13·1 answer
  • A coin is tossed 4 times. What is the probability that you will get heads all four times?
    14·1 answer
  • PLEASEE HELP!!!!NO LINKS
    7·1 answer
  • 13w + 9 = 178<br> What’s the first step in solving this equation
    7·2 answers
  • Follow tik-tok send a pic for BRAINLIEST official._.ameerah
    14·2 answers
  • Help ASAP pleaseeee!!!!!
    5·2 answers
  • Tadeo is a beekeeper. The table shows the weekly number of bees producing honey in a new hive. Which expression gives the number
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!