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insens350 [35]
3 years ago
6

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

e None of these
Mathematics
1 answer:
spin [16.1K]3 years ago
7 0

Answer:  Simple Random

Step-by-step explanation:

  • A simple random sampling technique is a random sample technique in which a subset of the population is drawn by the researcher . They are chosen in such a way that all the individuals in the population has an equal chance to get chosen .

Given : In a study, the sample is chosen by pulling 50 names from a hat .

Here the probability of each name to get selected is equal.

Thus, this is a simple random sampling method.

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Recall the question for a circle with center. (H,k) and Radius r. At what point in the first quadrant does the line with equatio
kap26 [50]

Answer:

the point lies at (1.7, 3.6) in the first quadrant.

Step-by-step explanation:

The formula for a circle with centre (h,k) and radius (r) can be expressed as :

(x-h)² + (y-k)² = r²

Now for the expression of the circle with radius 3 and center (0,1), we have:

(x - 0)² + (y - 1)² = 3²

x² + (y-1)² = 9

replacing y = 1.5x + 1 in the above equation, we have:

x² + (( 1.5x + 1 ) - 1 )² = 9

x² + ( 1.5x +1 - 1)² = 9

x² + (1.5x)² = 9

x² + 2.25x² = 9

3.25x² = 9

x² = 9/3.25

x^2 = \dfrac{9}{\dfrac{13}{4}}

x^2 = {9} \times {\dfrac{4}{13}}

x= \sqrt{{9} \times {\dfrac{4}{13}}}

x= \pm 3 \times \dfrac{2}{\sqrt{13}}}

x= \pm \dfrac{6}{\sqrt{13}}}

x = 1.7 in the positive x - axis

Recall that:

y = 1.5x + 1

y = 1.5 (1.7) +1

y = 2.55 +1

y = 3.55

y = 3.6

Therefore, the point lies at (1.7, 3.6) in the first quadrant.

4 0
3 years ago
If m∠5 = 115 degrees, find m∠1 =
lana66690 [7]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

Question 1. If m∠5 = 115 degrees, find m∠1 = 115°

because they form corresponding Angle pair

Question 2. If m∠7 = 30 degrees, find m∠2 = 30°

because they form Alternate Exterior angle pair

Question 3. If m∠6 = 50 degrees, find m∠4 = 50°

because they form Alternate Interior Angle pair

Question 4. If m∠4 = 72 degrees, find m∠1 = 108°

because they form linear pair, their sum = 180°

  • Angle 4 + Angle 1 =180°

  • Angle 1 = 180° - Angle 4

  • Angle 1 = 180° - 72°

  • Angle 1 = 108°
4 0
3 years ago
The temperature outside dropped 13°F in 7 hours. The
Shkiper50 [21]

Answer:

15 degrees Fahrenheit

Step-by-step explanation:

2+13=15

or 13+2=15

4 0
3 years ago
HELPPP. i need help with this i have trouble with ordered pairs
Anton [14]
The second one i got (0,-2) first one i got (0,9)
8 0
3 years ago
Please solve this steps by step<br>1) (-5) - 5 <br>2) (-10) + 11​
Mila [183]

Answer:

1) -10

2) 1

Step-by-step explanation:

1)  (-5) - 5

- Removing the brackets won't change anything since it is subtraction, so now it will be - 5-5 which is equal to -10.

-5 -5 = -10

2) (-10) + 11

- The same case applies here since it is addition.

-10 + 11 = 1

8 0
3 years ago
Read 2 more answers
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