All of the above is the correct answer
Answer:
The probability that she wins exactly once before she loses her initial capital is 0.243.
Step-by-step explanation:
The gambler commences with $30, i.e. she played 3 games.
Let <em>X</em> = number of games won by the gambler.
The probability of winning a game is, <em>p</em> = 0.10.
The random variable <em>X</em> follows a Binomial distribution, with probability mass function:

Compute the probability of exactly one winning as follows:

Thus, the probability that she wins exactly once before she loses her initial capital is 0.243.
Answer:
-0.375
Step-by-step explanation:
Writing -3/8 as a decimal using division method:
To convert any fraction to decimal form, we just need to divide its numerator by denominator.
Here, the fraction is -3/8 which means we need to perform 3 ÷ 8.
This gives the answer as -0.375. So, -3/8 as a decimal is -0.375
Answer:
Step-by-step explanation:
20 - 8x - 21 + 7x
-x - 1
Answer:
g = 12b /5
Step-by-step explanation:
Given that:
Quarts of green paint = 4
Cup of black paint = 5/3
Quartz of green paint to be mixed with a given proportion of black paint.
Let proportion of black paint = b
Quartz of green paint = g
4 quartz = 5/3 cups
g quartz = b
Cross multiply :
4 * b = (5/3) * g
5/3 * g = 4b
g = 4b ÷ 5/3
g = 4b * 3/5
g = 12b /5