Answer:
1- b. False
2 b. We are 95% confident that the true mean is between 76.08 and 83.92.
Step-by-step explanation:
Confidence Interval is the estimated value that is computed from the statistic of data which is observed. The range value is plausible for unknown parameters. To find the critical value the confidence interval value is observed through the t-value table.
Full question:
Every 5 years the Conference Board of the Mathematical Sciences surveys college math departments. In 2000 the board reported that 51% of all undergraduates taking Calculus I were in classes that used graphing calculators and 31% were in classes that used computer assignments. Suppose that 16% used both calculators and computers. a) What percent used neither kind of technology? b) What percent used calculators but not computers? c) What percent of the calculator users had computer assignments? d) Based on this survey, do calculator and computer use appear to be independent events? Explain.
Answer:
a. 34%
b. 35%
c. 31.4%
d. Independent events
Explanation:
a. To calculate percentage that used neither kind of technology, we already know those that use the technologies and total taking calculus so:
100%-51%-31%-16%= 34%
b. Percentage that used calculators but not computers.
= 51%-16%=35%
c. Percentage of the calculator users that had computer assignments?
= 16/51×100=31.4% (there are 16 people using both so that as a percentage of 51 people using calculators)
d. Independent events are events that do not affect the other, such that occurrence of one does not define occurrence of the other. Since percentage of calculator and computer assignment users is close to those who are not using any, we can say they are independent events.
Answer:
It doubles every month.
Step-by-step explanation:
0 month - 6
1 month - 12
2 month - 24
3 month - 48
4 month - 96
5 month - 192
6 month - 384
7 month - 768
8 month 1536
Domain : [1 , 11] -------- True
Domain : [0, 13] ---------- False
Domain : ( 0, 13) ----------True
Range : (1, 11) ----------------False
Range : [1, 11] ----------------False
Range : [0 , 13]---------------True
Maximum: (10, 11) ----------- True
Maximum : (3, 1 ) -------------False
Minimum : (3 , 1 ) -------------True
Minimum : (10 , 11 ) -----------False
Answer:
regular polygon:
E & C
irregular polygon:
A & B
Not polygon:
D & F
Explanation:
<em>regular</em><em> polygon</em><em>:</em><em> </em>
has equal sides however the number of side and regular shape and it has equal angles between its sides. <em>"</em><em>ex"</em><em> </em><em>(</em><em>equilateral</em><em> </em><em>triangle</em><em>)</em>
as in figure C & E.
<em>Irregular</em><em> </em><em>polygon</em><em>:</em>
the opposite of regular polygon but both has a straight line all over the shape. as in figure B & A.
not a polygon:
it's may be a circle or a part of it.as in figure D & F.
