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S_A_V [24]
2 years ago
7

The following are the temperatures in °C for the first 10 days in January:

Mathematics
1 answer:
Lady bird [3.3K]2 years ago
8 0

Answer:

15.4 is the range.

Step-by-step explanation:

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identify the kind of sample that is described. the superintendent of a large school district wants to test the effectiveness of
Andrei [34K]

The sample used in this problem is classified as cluster.

<h3>How are samples classified?</h3>

Samples may be classified as:

  • Convenient: Drawn from a conveniently available pool.
  • Random: All the options into a hat and drawn some of them.
  • Systematic: Every kth element is taken.
  • Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
  • Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.

For this problem, a group of schools is selected, and then the new program is applied to all students in these school, meaning that all elements in the cluster are surveyed, so cluster sampling is used.

More can be learned about classification of samples at brainly.com/question/25122507

#SPJ1

7 0
1 year ago
Last week at Best Bargin, 75% of the computers sold were laptops. If 340 computers were sold last week, how many were laptops?
shusha [124]
75% of 340 is 85 so 85 laptops were sold at Best Bargin
3 0
3 years ago
Read 2 more answers
Find the slope of the line through each pair of points. <br> (19, −16), (−7, −15)
erik [133]

Point-Slope:

y+16=-1/26*(x-19)

Finding the regular slope:

m=1/-26=0.03846

7 0
3 years ago
Read 2 more answers
PLZ HELP!!!!!! WILL GIVE BRAINLIEST
stich3 [128]

Answer: Bottom and top (or which ever one is the small box in the middle and the one that looks like the small box in the middle)

Step-by-step explanation: the middle rectangle is the bottom and the other one like it is the top. the length is 7 in. and the height is 4 in. and 4 in. times 7 in. is 28in^2

7 0
2 years ago
Which represents the solution of the graphed system of equations, y=x^2-2x and y=-2x-1
elena55 [62]

Answer:

x = √(-1) = i

Since the value of √(-1) is not real.

The system has no real solution.

Step-by-step explanation:

The solution to the system of equations is at the point where they intercept each other.

y1 = y2

For the given equation;

y=x^2-2x and y=-2x-1

To get the where they intercept, we will equal both equations;

y=x^2-2x = -2x-1

x^2 - 2x = -2x - 1

x^2 - 2x + 2x + 1 =0

x^2 +1 = 0

x^2 = -1

x = √(-1) = i

Since the value of √(-1) is not real.

The system has no real solution.

6 0
3 years ago
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