Hey the solution to your question is (5,10).
Answer:
96
Step-by-step explanation:
12.50 + 18.50 + 20 + 20 + 13 + 12 = 96
Answer:
The percent increase of her collection is 60%
Step-by-step explanation:
Divide 24 by 15 to get your answer which is 1.6. Since the decimal is .6 and it is one digit behind the decimal, you can safely assume it is 60%
Answer:
Step-by-step explanation:
Given Equations:
Equation:1
Equation:2
Solving Equation:2 for the value of 'y'
Subtracting '5x' both sides:
Equation:3
Using substitution method: Put the value of 'y' in equation:1
Subtracting '51' both sides:
Putting the value of 'x' in equation:3
The values of 'x' and 'y' are:
This question is incomplete, the complete question is;
Assume the random variable x is normally distributed with mean p = 80 and standard deviation σ = 4.
Find the indicated probability. P(67 < x < 72)
(Round to four decimal places as needed.)
Answer:
the indicated is 0.0222
Step-by-step explanation:
Given the data in the question;
mean μ = 80
standard deviation σ = 4
p ⇒ P ( x -μ / σ )
so
P(67 < x < 72) ⇒ P( 67-80 / 4 ) < P( x -μ / σ ) < P( 72-80 / 4 )
P(67 < x < 72) ⇒ P( -13 / 4 ) < P( x -μ / σ ) < P( -8 / 4 )
P(67 < x < 72) ⇒ P( -13 / 4 < z < -8 / 4 )
P(67 < x < 72) ⇒ P( -3.25 < z < -2 )
⇒ P( z < -2 ) - P( z < -3.25)
Now from z table;
⇒ 0.02275 - 0.00058
P(67 < x < 72) ⇒ 0.02217 ≈ 0.0222 { four decimal places }
Therefore, the indicated is 0.0222
