Step-by-step explanation:
Step-by-step explanation:
The total is 3.6 + 4.85 = 8.45.
The answer is right above me yw lol
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:Solve this system by substitution (3 variables) brainliest answer goes to first answer and 8 points!
-x -y -z = -8
-4x +4y +5z = 7
2x+2z=4
Show steps please!
Step-by-step explanation: a-z=3-2=657u568959jb5j656856 thats the answer your welcome
