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saw5 [17]
3 years ago
8

The random variable X, representing the number of accidents in a certain intersection in a week, has the following probability d

istribution: On average, how many accidents are there in the intersection in a week
Mathematics
1 answer:
ale4655 [162]3 years ago
5 0

Answer:

Average Mean = 1.8

Step-by-step explanation:

Missing:

X:0 1 2 3 4 5 6

P(x): 0.20 0.30 0.20 0.15 0.10 0.05

Computation:

Average Mean [Probability distribution]

∑[P(x) × X]

= 0 x 0.20 + 1 x 0.30 + 2 x 0.20 + 3 x 0.15 + 4 x 0.10 + 5 x 0.05

= 1.8

Average Mean = 1.8

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How can you tell that the slope of the line through (2,2) and (-3,5) is negative without calculating
cestrela7 [59]
The y values decrease as the x values increase. If you picture the points in your head, you’ll see that (2,2) is to the right and lower than (-3,5), creating a negative slope.
3 0
2 years ago
At Centertown Middle School, 25% of the 124 students Mrs. Wade teaches buy their lunches in the cafeteria.
cluponka [151]

Out of 124 students, only 31 students are taught to buy their lunches in the cafeteria.

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

It is given that,

The 25% of 124 students are taught to buy their lunches in cafeteria.

Therefore, the total number of students taught to buy their lunches in cafeteria is 25% of 124.

<u>To find the number of students who are capable to buy lunches in cafeteria:</u>

  • Replace the % symbol into the numeric form.
  • The % is represented by 1 ÷ 100.

The 25% of 124 students is written as,

⇒ 25×(1/100)×124

⇒ (1/4)×124

⇒ 31

The number of students taught to buy lunches in the cafeteria out of 124 students is 31 students.

5 0
3 years ago
Kendall's brother, Arnold bought a plate at this store, and he also payed 3% in sales tax. Arnold paid a total of 0.72 in sales
almond37 [142]
Im really not sure what the exact answer is 
4 0
3 years ago
Please help me solve this please
nlexa [21]

Answer:

2. (-3f)

3. (4f)

4. x - 11 (not sure if this one is correct)

Step-by-step explanation:

Move -3 to the left of f = -3f

Move 4 to the left of f = 4f

f(x)=x+11 f ( x ) = x + 11

8 0
2 years ago
Themba buys 2 boxes of mayos on opening the boxes he find that an average of 2 are damagef in each box how many mayos altogether
borishaifa [10]
We would need to know how many are in each box to figure this out.
4 0
2 years ago
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