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olga nikolaevna [1]
3 years ago
11

Which equation matches the graph shown?

Mathematics
1 answer:
amid [387]3 years ago
6 0

Answer:

d

Step-by-step explanation:

hello

f(0)= -5 so we should have y+5 on left side

because of the shape we can understand a = bigger than 0 so a=0.5

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Determine whether the random variable is discrete or continuous. a. The number of statistics students now reading a book. b. The
andrey2020 [161]

Answer:

Continuous random variables: c and e

Discrete random variables: a, b, d  

Step-by-step explanation:

We have to identify whether the random variable is discrete or continuous.

  • A discrete variable is a variable whose value is obtained by counting.
  • A continuous random variable X takes all values in a given interval of numbers.
  • Thus, a continuous variable can have values in decimals but a discrete random variable cannot take values in decimals.

a. The number of statistics students now reading a book.

Discrete random variable since number of students cannot take decimal values.

b. The number of textbook authors now sitting at a computer.

Discrete random variable since number of textbooks cannot be expressed in decimals but counted.

c. The exact time it takes to evaluate 27 plus 72.

It is a continuous random variable as it may take all values within an interval of time.

d. The number of free dash throw attempts before the first shot is made.

It is a discrete random variable since the number of throws can always be whole number.

e. The time it takes to fly from City Upper A to City Upper B.

Time is a continuous random variable.

6 0
3 years ago
If someone covers 4 laps in 12 minutes what was the speed?
Alisiya [41]
If someone covers 4 laps in 12 minutes, he would be able to cover 1 lap in 3 minutes if that was the question. The question isn’t really clear.
3 0
3 years ago
Supposethat z is a normally distributed variable with variance 4. You collect a sample of size n for which you get a sample aver
Nikitich [7]

Answer:

The sample size is 4

Step-by-step explanation:

Null hypothesis: The mean is 2

Alternate hypothesis: The mean is less than 2

Mean = 3

sd = sqrt(variance) = sqrt(4) = 2

At 95% confidence level, t-value is 1.960

Assuming the lower bound of the mean is 1.04

Lower bound = mean - (t×sd/√n)

1.04 = 3 - (1.96×2/√n)

3.92/√n = 3 - 1.04

3.92/√n = 1.96

√n = 3.92/1.96

√n = 2

n = 2^2

n = 4

7 0
3 years ago
The membership of Imua Gym is $30/ month plus a one-time fee of $100 while Planet Fit is $50/ month and no one-time fee. How do
LekaFEV [45]
The equarion to this problem is 30 + 100 + 50x = x
5 0
3 years ago
Bob and Marie like to go to a good steakhouse. Dinners are $14 to $16 dollars with soup or salad. A beverage is $1.25. Dessert i
rosijanka [135]

Answer:

50.02

Step-by-step explanation:

7 0
2 years ago
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