Wait is that x to the power of two???
Answer:
B. 0.0028
Step-by-step explanation:
This is a binomial distribution. We could use a calculator to find the probability, or, since the sample size is large enough and both np and nq are larger than 10, we can approximate this as a normal distribution.
To do so, we first find the mean and standard deviation.
μ = np = (0.02) (1500) = 30
σ = √(npq) = √(0.02 × 0.98 × 1500) = 5.42
Now we find the z-score:
z = (x − μ) / σ
z = (45 − 30) / 5.42
z = 2.77
Finally, we use a z-score table to find the probability.
P(z > 2.77) = 1 − P(z < 2.77)
P(z > 2.77) = 1 − 0.9972
P(z > 2.77) = 0.0028
Slope = (-14-1)/(7-1) = -15/6
y = mx + c
y = -15/6 x + c
at (1,1)
1 =-15/6(1) + c
c = 1 + 15/6 = 21/6
y = -15/6 x + 21/6 or
6y = -15x + 21
<u>Answer:</u>
Ayden solved 18 maths problems and read 36 pages
<u>Explanation:</u>
Let x represent the number of maths problems Ayden solved
y represent the number of pages he read
According to the question,
3x + 1y = 90
y = 2x as no. of pages he read is twice the number of math problems
Substituting,
3x + 2x = 90
Solving for x, x = 18
So, Ayden solved 18 maths problems
Putting the value in equation y = 2x,
y = 36
So, Ayden read 36 pages
Answer:
it's 6
Step-by-step explanation:
i just submitted it