#1) D, 95%
#2) B, 34%
Explanation
#1) The mean is 6 and the standard deviation is 0.2. 5.6 is 0.4 away from the mean; 0.4 is 2 standard deviations. 6.4 is 0.4 away from the mean; again, 0.4 is 2 standard deviations.
The empirical rule states that 95% of data will be within 2 standard deviations of the mean, so 95% is our answer.
#2) 6.2 is only 1 standard deviation away from the mean. However, this is only half of the percentage from the empirical rule, since we are only considering numbers larger than the mean. The empirical rule states that 68% of data will fall within 1 standard deviation from the mean, so we have
68/2 = 34%.
Answer:
Its a parabola, a graph that opens upward.
The slope is given so you straight away apply it to the equation,
Y=mx+b
Y=3x+b
Now replace the points x and y to find b (y-intercept)
10=3(4)+b
10-12=b
b= -2
Final answer:
Y=3x-2
Hope that answers your question and best of wishes!!
Answer:
II need help with something somewhat like this.
Step-by-step explanation:
Hello there!
I'm not exactly sure of what answer you are looking for, however,
f(x)=ax^2+bx+c represents a quadratic function.
Quadratic functions always have their highest exponent at 2, nothing more and nothing less.
Examples of quadratic functions are...
•x^2
•3x^2
•3x^2+2
•3x^2+2x
•3x^2+2x+1
I really hope this helps!
Best wishes:)