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MaRussiya [10]
2 years ago
8

Solve the problems using your graphing calculator. Round all parameter values to

Mathematics
1 answer:
Effectus [21]2 years ago
7 0

Drawing a scatter plot for the given values on a graphing calculator, we have;

  • y = -0.19•x + 8.36

<h3>How can the function that best represents the data be found?</h3>

The values are;

Day; Running time

1; 8.2

2; 8.1

3; 7.5

4; 7.8

5; 7.4

6; 7.2

7; 7.1

Entering the above values in a graphing calculator, we have;

  • The slope of the line of best fit = -0.19
  • The x-intercept = 45

Therefore;

  • 0 = -0.19 × 45 + y-intercept

0 = -8.36 + y-intercept

  • y-intercept = 8.36

The equation found using the statistics function for scatter plot on a calculator is therefore;

  • y = -0.19•x + 8.36

Learn more about scatter plots here:

brainly.com/question/2605413

#SPJ1

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Step-by-step explanation:

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Roll two fair dice. Each die has six faces. A. Let A be the event that either a 3 or 4 is rolled first followed by an odd number
zhenek [66]

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A. 0.16

B. 0.58

C. No

D. Dependent

Step-by-step explanation:

A.

The sampling space has 36 outcomes.

The event A has 6 outcomes (3,1), (3,3), (3,5), (4,1), (4,3),(4,5)

So P(A)= 6/36 = 0.16

B.

The table in the picture shows the 15 outcomes that are not allowed, so there are 36-15 = 21 possible outcomes for B and its probability is 21/36 = 0.58

C.

Are A and B mutually exclusive events?

No since their intersection is not empty, for example (3,1) belongs to both A and B

D.

In order for A and B to be independent, it must happen that

P(A∩B)=P(A)P(B)

A∩B={(3,1),(3,3),(4,1)} so P(A∩B) = 3/36  

whereas

P(A)P(B) = (6/36)(21/36) = (1/6)(7/12)=7/72

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Two lines are parallel to each other if they have the same slope. True or false?
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Step-by-step explanation:

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