The sample standard deviation S may be used in place of in the large-sample confidence interval for
N provided n is at least _. 30
The larger the sample size n, the smaller the maximum error of estimate.
True
To obtain a large-sample confidence interval f
The mathematical expectation for a game is determined by multiplying each amount by its
PROBABILITY and adding the products.
In a probability Tree Diagram such as that of Figure 41.1a on page 113 of the textbook, the branches
representing the POSSIBILITIE
When using the Poisson approximation to the binomial, is replaced in the
formula by np.
In the hypergeometric distribution formula, the total numer of trials is given
by a+b.
To calculate the probabilities of obtaining 3 aces in 8 draws a card with
replac
Question 9
Same information as in #1.
mums-mum
EIE-E
-WI
Ifwe use the signicance level 0.05 do we reject or fail to reject the null hypothesis?
Question 10
Same information as in #1.
mums-mum
EIIEEEI
-W
If we use the 0.05 signicance level, state your
Question 1
The contestants on the TV show American Idol try to win a singing contest. At one point a website
listed the actual number of eliminations for different orders of singing and the expected percentage
of eliminations. The results are in the table
Question 5
Same information as in #1.
EEI-I'm
_
EIl-E-
% Expected Eliminations l9o m-MEE
What is the expected frequency E for the eliminations in the
third place singing order category?
Round your answer to the nearest whole number.
Question 6
Same info
Honk work 1f 1
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+112 WW? FE fan/4&4:
swd 01nd cfw_nd +44%1Aace
MMWHMI MW? #wa
(phi-MA" 0.143 a]! W
l 730 maa 0w
3 m antes m WWW 2; a cfw_04mm
(1.4er dm MWW 10 h foal/HM! +2) 6% 1L9 42
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week2
x=3 - good
3=x -wrong
string
eg var x=1;
var y="7";
x+y;
typeof x+y;
"17"
return the value
Number(y)
7
x+Number(y)
8
bit/bite rgb. -use adobe color to figure it out
week 3
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What is media query?
@media
A media query consists of an optional media type and zero or more expressions that limit the style
sheets' scope by using media features, such as width, height, and color. Media queries, added in
CSS3 , let the presentation of
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