Ask question

Ask question

All categories

3 years ago

5

The chart shows what method of transportation students at local high school use to get to school. The results are given by grade

level.
What is the probability that a student rides the bus given that they are in the 10th grade?

1 answer:

kogti [31]3 years ago

8 0

The ride bus says 150

You might be interested in

(a) Fill in the tavle below to complete the proability distrubution of X

Aliun [14]

Answer:

2.6

Step-by-step explanation:

Given :

x 1 2 3 4

P(x) 0.3 0.2 ? 0.4

Σp(x) = 1

Hence, 0.3 + 0.2 +? + 0.4 = 1

0.9 +? = 1

? = 1 - 0.9

? = 0.1

For the mean :

E(X) = ΣX*P(X)

(1 * 0.3) + (2 * 0.2) + (3 *0.1) + (4* 0.4)

0.3 + 0.4 + 0.3 + 1.6 = 2.6

Hence, the mean = 2.6

6 0

3 years ago

5% sales tax on a $30 purchase

Molodets [167]

Answer:

29.50

Step-by-step explanation:

6 0

2 years ago

A rectangle’s perimeter and its area have the same numerical value. The width of the

Zolol [24]

Step-by-step explanation:

6 units.

(3*2)+2x=3x

Set the perimeter equal to the area

x(length)=6 units

7 0

3 years ago

How much is 1 inch pls answer this question for me smart ones

Kaylis [27]

Answer: 2.54 centimeters

Step-by-step explanation: multiply the length value by 2.54

7 0

1 year ago

Carey needs $60 to buy her mother’s a gift. She saved 25% of that amount so far. How much has she saved so far?

sdas [7]

Answer:

$15

Step-by-step explanation:

<u>25% of $60 is:</u>

25*60/100 = 15

She saved $15 so far

4 0

2 years ago