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Tom [10]
3 years ago
8

To assess the learning outcomes of a Statistic course, 5 students are chosen at random from each of the 30 Statistics classes an

d asked to take an assessment test. What is the sampling method used here
Mathematics
1 answer:
zhannawk [14.2K]3 years ago
3 0

Answer: simple random sampling

Step-by-step explanation:

In statistics, when a subset of individuals known as sample chosen from a population by a random selection of individuals such that the chances of selecting each individual is same, then the sampling method is called simple random sampling method.

Given: To assess the learning outcomes of a Statistic course, 5 students are chosen at random from each of the 30 Statistics classes.

here chances for selectin students is same.

The sampling method used here : " simple random sampling "

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A prairie dog left its burrow 5 feet underground and started digging deeper into the ground. It digs straight down at a constant
SpyIntel [72]

Building and solving an equation to model the situation, it is found that it takes 4 min for the prairie dog to reach 13 feet underground.

  • Initially, the dog is 5 feet underground.
  • Each minute, the dog goes 2 more feet underground.

Hence, the underground height of the dog after t seconds is given by:

h(t) = 5 + 2t

The time it takes for the dog to reach 13 feet underground is <u>t for which h(t) = 13</u>, hence:

h(t) = 5 + 2t

13 = 5 + 2t

2t = 8

t = \frac{8}{2}

t = 4

It takes 4 min for the prairie dog to reach 13 feet underground.

A similar problem is given at brainly.com/question/25290003

7 0
3 years ago
A store donated 2 1/4 cases of crayons to a daycare center. Each case holds 24 boxes of crayons; each box holds 8 crayons. How m
Westkost [7]

Answer:

432 crayons

Step-by-step explanation:

convert 2 1/4 to 9/4

1 case=24 boxes=8 crayon in each box

24*8=192 for 1 case

9/4*192=432

The center received 432 crayons  

5 0
3 years ago
Can anyone please answer these for me?
yulyashka [42]

11.  y=-3x-5

12.  y=-5

13. y= -1/3x+5

14.  y=3x-5

3 0
3 years ago
Rico picked 16 lb of peaches and shared
ser-zykov [4K]

Answer:

2\frac{2}{3}

Step-by-step explanation:

16 divided by 6 is 2.66666667

Since 1/3 is .33 , 2/3 is .66

4 0
2 years ago
1) -4.2 = y - 1.8<br> i don’t know the answer need help
anastassius [24]

Answer:

y - 1.8 = -4.2

y = -2.4 is the solution

4 0
3 years ago
Read 2 more answers
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