All categories

3 years ago

What is the probability of the complement of rolling a number less than 5 by using a six-sided die?

Mathematics

1 answer:

LUCKY_DIMON [66]3 years ago

3 0

Answer:

1/3

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

A probability of the complement of an event is 1 subtracted by the probability of the event.

Probability of rolling a number less than 5:

6 numbers(from 1 to 6), of which 4(1,2,3,4) are less than 5. So

p = 4/6 = 2/3

Probability of the complement of rolling a number less than 5:

1 - 2/3 = 1/3

So 1/3 is the answer

You might be interested in

A grocer stacks oranges in a four-sided pyramid that is 7 layers high. How many oranges are in the pile?

gayaneshka [121]

Short Answer D
P(1) = 1(1+1)(2*1 + 1)/6
P(1) = 1(2)(2 +1) / 6
P(1) = 1(2)(3)/6
P(1) = 1

P(2) = 2(2+1)(2*2 + 1) / 6
P(2) = 2(3)(5) / 6
P(2) = 5 So this formula is adding as it goes along. To Find the Total all we need do is use the formula to calculate P(1) to P(7)

P(7) = 7*(7 + 1)(2*7 + 1)/6
P(7) = 7 * 8 * 15 / 6
P(7) = 7 * 4 * 5
P(7) = 140 <<<< Answer

4 0

3 years ago

HELP PLEASE I NEED IT NOWWW.

Elina [12.6K]

Answer:

C.) 5

Step-by-step explanation:

If beth were 5 ( Making Julio 3)

Gerald is 10 and Debra is 20

10+20+5+3 = 38

I hope this helps you :)

3 0

3 years ago

Help me please :>>>>>>>

Ket [755]

Answer:

C. Median

Step-by-step explanation:

If both sides are symmetrical, then there is no need to try and find the mean or anything because you already have the middle point and no outliers. If there were outliers it'd be different, unless the outliers were symmetrical with the rest of it, then the median would still be a good option.

5 0

2 years ago

Read 2 more answers

Sketch and write the equation for each line : y = mx +b

snow_lady [41]

Answer:

equation y =7/4x+1

slope = 7/4

Step-by-step explanation:

We have two points so we can find the slope

m =(y2-y1)/ (x2-x1)

= (4--3)/(2--2)

= (4+3) / (2+2)

= 7/4

We know the slope and the y intercept

We can write the equation using y = mx+b where m is the slope and b is the y intercept

y= 7/4x +1

We put at dot at (0,1) and then go up 7 and to the right 4 . We put another dot

Connect the dots and we have our line.

We could also put dots at (-2,-3) and (2,4) and connect the dots.

7 0

4 years ago

Helppp meee plssss

Volgvan

Answer:

Cost of fish = Php. 60, amount of fish = x kg
Cost of chicken = Php. 120, amount of chicken = y kg
Budget = at most Php. 1200

a) Required inequality (not a system as only one condition is given):

60x + 120y ≤ 1200

Simplified:

x + 2y ≤ 20

The graph is attached

b) Verify ordered pair (10, 7):

10 + 2*7 ≤ 20
24 ≤ 20

False inequality, so this pair is out of solution set

8 0

3 years ago