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3 years ago

In a study, the sample is chosen by pulling 50 names from a hat What is the sampling method?

Mathematics

1 answer:

Irina18 [472]3 years ago

6 0

Answer:Simple random sample

Step-by-step explanation:

A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen. A simple random sample is meant to be an unbiased representation of a group.

NOTE:

No easier method exists to extract a research sample from a larger population than simple random sampling. Selecting subjects completely at random from the larger population also yields a sample that is representative of the group being studied.

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The histogram to the right represents the weights (in pounds) of members of a certain high-school math team. How many team mem

Luden [163]

Answer:

Step-by-step explanation:

The vertical axis of a histogram indicates the total amount of people that meet the weights indicated in the x-axis in the analysed population. From data we can construct the following table:

x-axis y-axis

115 1

135 4

155 3

175 1

195 5

215 2

235 3

So there are: 1+4+3+1+5+2+3 = 19 team members included in the histogram.

5 0

3 years ago

What are the coordinates of the point LaTeX: \frac{3}{4}\:3 4of the way from A to B? coordinate plane with line segment AB. Poin

egoroff_w [7]

Answer: $\left(\dfrac{-7}{2},\dfrac{5}{4}\right)$ .

Step-by-step explanation:

It is given that Point A is at (-5, -4) and point B at (-3, 3).

We need to find the coordinates of the point which is 3/4 of the way from A to B.

Let the required point be P.

$AP:AB=3:4$

$AP:PB=AP:(AB-AP)=3:(4-1)=3:1$

It means, point P divides segment AB in 3:1.

Section formula: If a point divides a line segment in m:n, then

$\left(\dfrac{mx_2+nx_1}{m+n},\dfrac{my_2+ny_1}{m+n}\right)$

Using section formula, we get

$P=\left(\dfrac{3(-3)+1(-5)}{3+1},\dfrac{3(3)+1(-4)}{3+1}\right)$

$P=\left(\dfrac{-9-5}{4},\dfrac{9-4}{4}\right)$

$P=\left(\dfrac{-14}{4},\dfrac{5}{4}\right)$

$P=\left(\dfrac{-7}{2},\dfrac{5}{4}\right)$

Therefore, the required point is $\left(\dfrac{-7}{2},\dfrac{5}{4}\right)$ .

6 0

4 years ago

a taxi service charges $2.40 for the first mile of a ride and $1.40 for every additional mile. linda planned to give a $2 tip fo

Grace [21]

Answer:

5 miles

Step-by-step explanation:

2 as a baseline then add 2.40 for first mile which then comes up to 4.40. 4.40 plus 1.40 = 5.80 plus 1.40 = 7.20 plus 1.40 = 8.60 plus 1.40 = 10. then we count the amount of 1.40's we added which was 4. and then we account for the first mile so there we have 5 miles

3 0

3 years ago

Read 2 more answers

Ake is making pancakes for his family. The recipe for 50 pancakes is below.

Anna71 [15]

Answer:

He will need 96 cups of flour, 36 cups of sugar, 72 cups of milk, and 48 cups of eggs.

Step-by-step explanation:

He wants to make 1/4 of the 50 pancakes stated above. So if you divide 50 by 4 you get 12.5 and when you multiple 12.5 by 8 you get 96 cups.

6 0

3 years ago

Read 2 more answers

Help 69 points

worty [1.4K]

Answer:

a) No Solution

Step-by-step explanation:

36 - 7p = -7(p - 5)

36 - 7p = -7p + 35

1 - 7p = -7p

1 = 0p

so a) No Solution

8 0

3 years ago