Answer:
a)
We can use the probability mass function and we got
b)
We can use the probability mass function and we got
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".
Part a
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 for this case we want to find this probability:
We can use the probability mass function and we got
Part b
Let X the random variable of interest, on this case we now that:
And for this case we want to find this probability:
We can use the probability mass function and we got
Answer:
10/9
Step-by-step explanation:
5x-15 4x+12
--------- * ------------
3x+9 6x-18
Factor
5(x-3) 4( x+3)
----------- * ----------
3(x+3) 6( x-3)
Cancel like terms
5/3 * 4/6
20/18
Divide top and bottom by 2
10/9
Answer:
The firsts one is -93
The second is -20
Step-by-step explanation:
Just add the numbers yo each number togetherput a negative sign in front and you have your answer. For how to add a negative.
<em>Note</em><em> </em><em>If two negative numbers are multiplied together or divided, the answer is positive. If a positive and a negative number are multiplied or divided, the answer is negative.</em>
Answer:
=64 %
Step-by-step explanation:
The percentage decrease is found by
Percent decrease = (original - new)/ original * 100 percent
The original price is 25
The new price is 9
Percent decrease = (25-9)/25 * 100%
=16/25 * 100%
=64 %
All this is a unit conversion really, initially you'll need to put the 460.28 oz over the 12.44 hours. Your expression should read as 460.28 oz/12.44 hr, next simply divide and you will have your answer of 37 oz/hr