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lara [203]
3 years ago
5

A nutritional consulting company is trying to find what percentage of the population of a town is overweight. The marketing depa

rtment of the company contacts by telephone 600 people from a list of the town's telephone directory. All 600 people give answers to the survey. Which of the following is the most significant source of bias in this survey?
a. Size of sample.
b. Undercoverage.
c. Voluntary response bias
d. Nonresponse.
e. Response bias.
Mathematics
1 answer:
Ymorist [56]3 years ago
3 0
It is undercoverage bias
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the sides of a triangular birdcage are consecutive intergers if tge perimeter is 114 cm what is tge length of each side
alexandr402 [8]
Let:
x = first consecutive integer (or first side of △)
x + 1 = second consecutive integer (or second side of △)
x + 2 = third consecutive integer (or third side of △)

The formula for a perimeter of △ is simply the addition of three sides (or length). Since the given perimeter is 114 cm,
x + x+1 + x+2 = 114
3x + 3 = 114
3x = 114 - 3
3x = 111
x = 111 /3 = 37 cm
The three sides are 37 cm, 38 cm, and 39 cm.
5 0
3 years ago
En france en 1900 la taille moyennes des femmes etait de 1,54 m et celle des hommes de 1,66 m. Entre 1900 et 2010 ces tailles mo
frez [133]

Complete question :

En France, en 1900, la taille moyenne des femmes était de 1,54 m et celle des hommes de 1,66 m. Entre

1900 et 2010 ces tailles moyennes ont augmentées d'environ 5,55%.

Calculer, en mètres, l'arrondi au centième des tailles moyennes des femmes et des hommes en 2010.​

Répondre :

Femmes = 1,63

Hommes = 1,75 m

Explication étape par étape:

Étant donné que :

Taille moyenne en 1900:

Hommes = 1,66 m

Femmes = 1,54 m

Pourcentage d'augmentation de poids d'ici 2010 = 5,55%

1 + 5,55% = 1 + 0,0555 = 1,0555

D'où,

Taille des femmes en 2010:

1,0555 * 1,54 = 1,62547 = 1,63 m

Pour la taille des hommes en 2010:

1,0555 * 1,66 m = 1,75213 = 1,75 m

3 0
3 years ago
On a test, the marks for ten students are: 2 students, 85%; 4 students, 78%; 3
anzhelika [568]

Answer:

77.2%

Step-by-step explanation:

The average formula is:

Average = \frac{Sum/of/all/numbers}{How/many/numbers/there/are}

Let's first find the sum of all the numbers (remember sum means to add):

(2)(85) + (4)(78) + (3)(66) + 92 = ?

170 + 312 + 198 + 92 = 772

There are marks for 10 students so that is what goes at the bottom (10 students, 10 test scores)

Plug both things into the equation:

Average = \frac{772}{10} \\= 77.2

Therefore, the average mark on the test was 77.2%

<em>Hope this helps!!</em>

<em>- Kay :)</em>

6 0
3 years ago
Pls help! brainliest promised! easy 6th grade stuff!
Sunny_sXe [5.5K]

Answer:

C or B

Step-by-step explanation:

look at the math now use a calculator

4 0
3 years ago
Read 2 more answers
What is the difference between the absolute value of 4 and the absolute value of –3?
evablogger [386]

Answer:

The absolute value of -3 is three the absolute value of 4 is 4.

7 0
3 years ago
Read 2 more answers
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