Jake's final grade in his science class is calculated by finding the mean of his scores for six project reports. The score Jake
received on his first five reports are 66,80,88,82, and 72.
What is the lowest-possible score jake can earn his last report in order to have at least an 80 for his final grade?
What is the lowest-possible score jake can earn his last report in order to have at least an 80 for his final grade?
1 answer:
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Answer:
The total number of guests that were at the wedding was 276.
Step-by-step explanation:
Let the total number of guests at the wedding be, <em>N</em>.
The meal options are:
Beef, Chicken and Vegetarian.
It is provided that:
Proportion of guests who chose beef is, .
Proportion of guests who chose chicken is, .
According to the laws of probability, the sum of the probabilities of all the events of a sample space is 1.
Then the sum of probability of guests selecting beef, chicken or vegetarian should also be 1.
Compute the proportion of guests who chose vegetarian as follows:
P (Vegetarian) = 1 - P (Beef) - P (Chicken)
So, the proportion of guests who chose vegetarian was .
It is also provided that the number of guests who chose vegetarian was 69, i.e. of N = 69.
Compute the value of N as follows:
Thus, the total number of guests that were at the wedding was 276.