Answer:
Step-by-step explanation:
Given that a survey was conducted that asked 1004 people how many books they had read in the past year.
Results are:
x bar =12.5
s = 16.6
n = 1004
Std error of sample = 
Since population std dev is not known t critical value can be used for confidence interval.
df = 1004-1 =1003
t critical = 1.96
Margin of error 
Confidence interval lower bound 
Upper bound 
<span>1. A = 1/4s squared, square root of 3 equilateral triangle
2. A = bh rectangle
3. A = pi(r) squared circle area
4. A = 1/2 h (b1+ b2) trapezoid
5. C = pi(d) circle circumference
6. A = base x altitude parallelogram
7. A = 1/2(ap) regular polygon
8. A = 1/2(bh) triangle
</span><span>- regular polygon
- trapezoid
- parallelogram
- circle circumference
- equilateral triangle
- circle area</span>
Answer:
coin flip is 1/2
2 numbers are less than 3 so 2/6 = 1/3
1/2 x 1/3 = 1/6 probability total
240 x 1/6 = 40
answer is C) 40
Step-by-step explanation:
Answer:
Subtracted 3 from (24+3)
Step-by-step explanation:
3m - 3 + 3
24 - 3 + 3
Since the adding and subtracting go left to right, you can do them in that order.
21+3 = 24.
Now which one gives us 24?
(24+3) - 3
