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MatroZZZ [7]
3 years ago
11

The Quick Change Oil Company has a number of outlets in the metropolitan Seattle area. The daily number of oil changes at the Oa

k Street outlet in the past 20 days are: 65 98 55 62 79 59 51 90 72 56 70 62 66 80 94 79 63 73 71 85 The data are to be organized into a frequency distribution. a. How many classes would you recommend
Mathematics
1 answer:
Rashid [163]3 years ago
8 0

Answer:

5 classes.

Step-by-step explanation:

You can use the 2^k rule to determine the number of classes for a frequency distribution.

The 2^k rule says that 2^k\geq n where

k is the number of classes

n is the number of the data points

We know that the number of data points is n = 20.

Next, we start searching for k so that we can get a number 2 to the k that is larger that the number of data points.

2^4=16\\2^5=32

This suggests that you should use 5 classes.

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An equation of a line perpendicular to the line represented by the equation y = -
dem82 [27]

Answer:

y= 1/2x+1

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What are the coordinates of the midpoint of the line segment with the endpoints (2,-5) and (8,3)
Papessa [141]
  • Midpoint Formula: (\frac{x_2+x_1}{2} ,\frac{y_2+y_1}{2} )

Plug the coordinates into the midpoint formula and solve as such:

(\frac{2+8}{2} ,\frac{-5+3}{2} )\\\\(\frac{10}{2} ,\frac{-2}{2} )\\\\(5,-1)

<u>Your midpoint is (5,-1).</u>

7 0
3 years ago
Find (f•f) (0)<br> F(x)=3x-2
NNADVOKAT [17]

Answer:  (f·f)(0) = 4

              (fof)(0) = -8

<u>Step-by-step explanation:</u>

f(x) = 3x - 2

(f·f)(x) = (3x - 2)(3x - 2)

         = 9x² - 12x + 4

(f·f)(0) = 9(0)² - 12(0) + 4

          = 4

(fof) = 3(3x - 2) - 2

       = 9x - 8

(fof)(0) = 9(0) - 8

           = -8

<em>I wasn't sure if you wanted multiplication or composition so I solved both</em>

5 0
3 years ago
What is the image point of (8,-3) after a translation right 5 units and down 5 units?
pshichka [43]

Answer: (13, -8)

Step-by-step explanation:

Subtract 5 from -3

Add 5 to 8

3 0
2 years ago
Find the surface area of the cylinder. Type an exact answer in terms of pi.
weqwewe [10]

Answer:

154π cm²

Step-by-step explanation:

Radius (r) = 7 cm

Height (h) = 4 cm

Surface area of cylinder

= 2πr (h + r)

= 2π (7) (4 + 7)

= 2π (7) (11)

= 2π (77)

= 154π cm²

______

Hope it helps ⚜

8 0
2 years ago
Read 2 more answers
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