Answer:
Third quartile (Q₃) = 46.75 minutes.
Therefore, Option (c) is the correct answer.
Step-by-step explanation:
Given: Mean (μ) = 40 minutes and S.D (σ) = 10 minutes
To find : Third quartile (Q₃) = ?
Sol: As the third quartile of normal distribution covers the 75% of the total area of the curve and first quartile covers the 25% of the total area of the curve. Then with the help of z score table, the value represented the third quartile of the normal distribution is:
Q₃ = μ + 0.675 σ
Now by substitution the value of mean and standard deviation,
Q₃ = 40 + 0.675 × (10)
Q₃ = 40 + 6.75
Q₃ = 46.75
Therefore, the third quartile (Q₃) = 46.75. So, option (c) is the correct answer.
Answer:
Pickup trucks 1/4 = 25%
25% of 64 cars = 16 Pickup trucks
Leaving us with 48 cars left.
"twice as many cars as there are SUVs."
32 = cars
16 = SUVs
Answer:62
Step-by-step explanation:
F=c+32
C=30
F=30+32
F=62
Any two numbers, normally degrees, such as 10° and 170°, that add up to equal 180°
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