Answer:
- <u>150 pieces of candies.</u>
Explanation:
In the graph each divsion on the x-axis represents 3 <em>students </em>and each division of the y-axis represents <em>5 candies</em> left in the bowl.
Every point of the graph, i.e. every ordered pair (x, y), represents the number of candies given to the corresponding number of students.
Some pairs are:
- (0, 45), which means that when zero number of students had been given candies, there where 45 candies in the bowl.
- (3, 40), which means that 40 candies were left in the bowl after having given the candies to 3 students:
⇒ 45 - 40 = 5 candies were given every 3 students.
Since you might draw a line that passes through all the the points on the graph, the ratio of number of candies to number of students will be the same:
Thus, set a proportion:
- 5 candies / 3 students = x / 90 students
Solving for x:
- 5 candies / 3 students × 90 students = x
Therefore, <em>Mrs Wright would need </em><u>150 </u><em>pieces of candies in order to give the 90 students the same amount as she did for the 27 students.</em>
I believe the ramps volume is 190ft.
Answer:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
And we want to find this probability:
Step-by-step explanation:
Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
Solution to the problem
Let X the random variable of interest, on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
And we want to find this probability: