Answer:
y=3/4x-2
Step-by-step explanation:
y=mx+b
the b is the y-intercept so find the y-intercept of the line:
which is -2
the slope you need to find two points and look how many times do you need to rise or run to get the answer: 3/4
Hope this helps!
Answer:
1.33 percent of his 8 books.
Step-by-step explanation:
Assuming you mean 
, that equates to 1.33 percent of 8, thus he has read <em>one whole book </em>and is reading his second one.
Answer:
Step-by-step explanation:
Let x be the random variable representing the time (in minutes) taken for a dose of a certain drug to be effective as a sedative on lab animals. Since it is normally distributed and the population mean and population standard deviation are known, we would apply the formula,
z = (x - µ)/σ
Where
x = sample mean
µ = population mean
σ = standard deviation
From the information given,
µ = 1
σ = √variance = √0.01 = 0.1
the probability that the time taken for a randomly selected animal is between 1 and 1.1 minutes is expressed as
P(1 ≤ x ≤ 1.1)
For x = 1,
z = (1 - 1)/0.1 = 0
Looking at the normal distribution table, the probability corresponding to the z score is 0.5
For x = 1.1
z = (1.1 - 1)/0.1 = 1
Looking at the normal distribution table, the probability corresponding to the z score is 0.84
Therefore,
P(1 ≤ x ≤ 1.1) = 0.84 - 0.5 = 0.34
The the proportion of animals for which the time taken is between 1 and 1.1 minutes is 0.34
Six hundred two thousand one hundred seven.
Hope this helps!
Step-by-step explanation:
