Answer:
c
Step-by-step explanation:not sure if im right
Answer:
29.2
Step-by-step explanation:
Mean = 21.4
Standard deviation = 5.9%
The minimum score required for the scholarship which is the scores of the top 9% is calculated using the Z - Score Formula.
The Z- score formula is given as:
z = x - μ /σ
Z score ( z) is determined by checking the z score percentile of the normal distribution
In the question we are told that it is the students who scores are in the top 9%
The top 9% is determined by finding the z score of the 91st percentile on the normal distribution
z score of the 91st percentile = 1.341
Using the formula
z = x - μ /σ
Where
z = z score of the 91st percentile = 1.341
μ = mean = 21.4
σ = Standard deviation = 5.9
1.341= x - 21.4 / 5.9
Cross multiply
1.341 × 5.9 = x - 21.4
7.7526 = x -21.4
x = 7.7526 + 21.4
x = 29.1526
The 91st percentile is at the score of 29.1526.
We were asked in the question to round up to the nearest tenth.
Approximately, = 29.2
The minimum score required for the scholarship to the nearest tenth is 29.2 .
Answer:
$64
Step-by-step explanation:
The cost of food ($60) leads to a 15% tip. The tip amount is calculated as follows: 0.15($60) = $4.
Adding the food cost and the tip amounts, we get $64, the total cost of the meal.
A faster approach would be to combine 1($60) + 0.15($60) into an expression of a single term: (1 + 0.15)($60 = 1.15($60) = $64.
Answer:
360
Step-by-step explanation:
Answer:
Linear
Step-by-step explanation:
The previous term plus 4.
1, 5, 9, 13 plotting these points would make a straight line!