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marta [7]
3 years ago
8

A popular computer card game keeps track of the number of games played and the number of games won on that computer. The cards a

re shuffled before each game, so the outcome of the game is independent from one game to the next and is based on the skill of the player. Let X represent the number of games that have been won out of 100 games. Under which of the following situations would X be a binomial random variable?
Mathematics
1 answer:
GrogVix [38]3 years ago
5 0

Answer:

Two players of equal skill level each played one game a day for 50 days and their skill level did not change from day to day.

Step-by-step explanation:

(A) The probability of player winning the game depends on the skill level . If  skill level increases the probability to win also increases. The probability of success (win) must remain constant for every trial (condition of binomial distribution), hence, this case cannot be modeled by a random binomial probability.

(B) Different skill levels means the probability of success differs between players, the probability of winning each game would differ between players,  hence. X can not be a binomial random variable.

(C) Same explanation as B  

(D) As both players have same skill set throughout the game, the probability of winning each of the n = 100 games is the cosnat; hence, X can be modeled as a binomial random variable

(E) Same explanation as B and C  

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nadezda [96]
The answer A and D hope it right
4 0
3 years ago
If 2 kilograms of strawberries cost $4.50, how much would 3 kilograms cost?
guajiro [1.7K]

Find the cost of 1 kilogram, by dividing the cost of 2 by 2:


4.50 / 2 = $2.25 per kilogram.

Now multiply the cost of 1 by 3:

2.25 x 3 = $6.75 for 3 kilograms.

8 0
3 years ago
At the beginning of a musical, four-fifths of the seats in the theater were filled. During intermission, 18 people left. If ther
Roman55 [17]

Answer:

there are 380 seats in total

Step-by-step explanation:

286 + 18 = 304 which is four-fifths of the seat.  since 304 seats is 80% of the total seats then if you divide it by 80 then multiply it by 100 you get 380.

so one fifth would be 76 seats and if you multiply it by 4 you get 304 which is four fifths of the seat.

8 0
3 years ago
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VashaNatasha [74]
1.1

Hope this helps:)
3 0
3 years ago
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the
nalin [4]

Answer:

$519

Step-by-step explanation:

Given the amount of profit made expressed as y=-2x^2+105x-859

At maximum profit, dy/dx = 0

dy/dx = -4x + 105

0 = -4x + 105

4x = 105

x = 105/4

x = 26.25

Substitute into the original function

y=-2x^2+105x-859

y=-2(26.25)^2+105(26.25)-859

y = - 1,378.125+2,756.25-859

y = 519.125

Hence the maximum amount of profit the company can make is $519

8 0
3 years ago
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