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3 years ago

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Mathematics

1 answer:

Makovka662 [10]3 years ago

3 0

Probability for either side of a fair coin: 1/2. A coin has two sides.

Probability of any side of a dice: 1/6. A cube has 6 sides.

P(number rolled on dice is less than 3: 1/6+ 1/6 = 2/6 = 1/3.

Why do we add 1/6 two times? On a cube there are 2 numbers less than 3. You know the numbers to be 1 and 2.

P(Coin is heads): 1/2

P(Coin is heads AND dice is less than 3): 1/3 x 1/2 = 1/6.

Understand?

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A handyman charges $150 plus $25 per hour for painting a house. How much will the costumer have to pay if he paints the house fo

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Answer: B

Step-by-step explanation: you multiply 25 x 13 + 150

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3 years ago

In college basketball, some teams get most of their points from just one player, and other teams are more balanced in scoring. C

lutik1710 [3]

Answer:

(B) At Maryland, the mean number of points per player per game is greater than the median number of points per player per game.

(D)The mean number of points per player per game is the same at all 3 schools.

Step-by-step explanation:

Baylor University

6 players who each score 12 points per game

6 players who each score 0 points per game.

The Scores are: 0,0,0,0,0,0,12,12,12,12,12,12

$Mean=\frac{0+0+0+0+0+0+12+12+12+12+12+12}{12} \\Mean=6\\Median=\frac{12+0}{2}=6$

University of Maryland

1 player scores 58 points per game,

1 player scores 14 points per game,

The rest(10) of the players score 0 points per game.

The Scores are: 0,0,0,0,0,0,0,0,0,0,14,58

$Mean=\frac{0+0+0+0+0+0+0+0+0+0+14+58}{12} \\Mean=6\\Median=\frac{0+0}{2}=0$

Dartmouth College

4 players score 5 points per game,

4 players score 6 points per game,

4 players score 7 points per game.

The Scores are: 5,5,5,5,6,6,6,6,7,7,7,7

$Mean=\frac{5+5+5+5+6+6+6+6+7+7+7+7}{12} \\Mean=6\\Median=\frac{6+6}{2}=6$

The following applies:

(B) At Maryland, the mean number of points per player per game is greater than the median number of points per player per game.

(D)The mean number of points per player per game is the same at all 3 schools.

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3 years ago

Last year, the numbers of skateboards produced per day at a certain factory were normally distributed with a mean of 20,500 skat

BartSMP [9]

Let x be a random variable representing the number of skateboards produced
a.) P(x ≤ 20,555) = P(z ≤ (20,555 - 20,500)/55) = P(z ≤ 1) = 0.84134 = 84.1%

b.) P(x ≥ 20,610) = P(z ≥ (20,610 - 20,500)/55) = P(z ≥ 2) = 1 - P(z < 2) = 1 - 0.97725 = 0.02275 = 2.3%

c.) P(x ≤ 20,445) = P(z ≤ (20,445 - 20,500)/55) = P(z ≤ -1) = 1 - P(z ≤ 1) = 1 - 0.84134 = 0.15866 = 15.9%

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4 years ago

Which number sentences show how to solve the problem? Sasha’s family donated 12 boxes of canned vegetables to the food pantry. T

Kryger [21]

Here is the answer:
B. 12 – 3 = 9 and 9 × 24 = 216
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4 years ago

Read 2 more answers

F ( x) = 6 (1 - x ) what is the vaule of (-8)

mart [117]

Answer:

f(x) = 54

Step-by-step explanation:

Plugging in -8 we get f(x) = 6(1-(-8)) since there is a double negative we can simplify it to a positive --> f(x) = 6 (1 +8) now distribute 6 to all factors in ( )

6 times 1 is 6 and 6 times 8 is 48. So now we have 6 + 48 which = 54

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3 years ago