Answer:
Mean = 0.38082 checks per day
Variance = 0.38082
Standard deviation = 0.61711
Step-by-step explanation:
In a Poisson distribution, the variance (V) is equal to the mean value (μ), and the standard deviation (σ) is the square root of the variance.
A year has 365 days,, if 139 checks were written during a year, the mean number of checks written per day is:
Therefore, the variance and standard deviation are, respectively:
Answer:
Step-by-step explanation:
Given : The number of cards in a standard deck of cards = 52
The number of jack in a deck of cards = 4
The probability of drawing the first card as jack :-
If there is no replacement , the the total number of cards left = 51
The number of jack is left = 3
Then , the probability of choosing a jack for the second card drawn :-
Range is the difference between the highest and lowest nu!Need.
554-529=25
The range is 25
The product of a number and 3...
3x
one less then the product of a number and 3..
3x - 1
is means =
5 more then the number itself...
x + 5
3x - 1 = x + 5 <== ur expression
3x - x = 5 + 1
2x = 6
x = 6/2
x = 3 <==
Answer:
Buying 5 packs of bread rolls and 3 packs of burger meat
Step-by-step explanation:
Sara needs to find the least common multiple between 6 bread rolls and 10 pieces of burger meat:
Sara will get the same amount of burger to bread rolls when she buys 30 units of each. The numbers of packs of each product that she must buy are:
Sara should buy 5 packs of bread rolls and 3 packs of burger meat.