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2 years ago

2 find the probability of getting a sum 9 when two dice are thrown simultaneously.

Mathematics

1 answer:

Cloud [144]2 years ago

3 0

Answer:

The answer is 11.1

Step-by-step explanation:

First you need to figure out what all of the possible combinations of the two dice being thrown then divide it by the number of faces on both dice and you get your probability.

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In an effort to determine whether any correlation exists between the price of stocks of airlines, an analyst sampled six days of

vovikov84 [41]

Answer:

Check the explanation

Step-by-step explanation:

Following table shows the calculations:

Delta, X Southwest , Y X^2 Y^2 XY

45.96 38.76 2112.3216 1502.3376 1781.4096

46.8 45.41 2190.24 2062.0681 2125.188

47.93 15.7 2297.2849 246.49 752.501

51.78 49.58 2681.1684 2458.1764 2567.2524

52.17 44.34 2721.7089 1966.0356 2313.2178

47.36 18 2242.9696 324 852.48

Total 292 211.79 14245.6934 8559.1077 10392.0488

Sample size: n =6

Now

$S_{yy}=\sum y^{2}-\frac{\left (\sum y \right )^{2}}{n}=1083.27$

$S_{xx}=\sum x^{2}-\frac{\left (\sum x \right )^{2}}{n}=35.03$

$S_{xy}=\sum xy-\frac{\left (\sum x \right )\left (\sum y \right )}{n}=84.94$

The coefficient of correlation is :

$r=\frac{S_{xy}}{\sqrt{S_{xx}S_{yy}}}=0.436$

7 0

3 years ago

The teacher concluded that there is a correlation between having a computer and having a phone. Do you agree with the teacher? E

timama [110]

Answer:

yes I agree with teacher

Step-by-step explanation:

I I think this because 1 people that have a phone and a computer are the highest group and two becauseit seems that most of the class has a phone it also seems that most of the class has a computer

3 0

2 years ago

Triangle (-2,-2) (-6,-8) (-8,-8) over the x-axis. What are the new vertices?

ivanzaharov [21]

(-2,2) (-6,8) (-8,80

5 0

2 years ago

The cost to play the game is $2. The winner gets $6 for making green. Suppose 36 people play the game. How much money will the s

IRINA_888 [86]

Answer:

$72

Step-by-step explanation:

I did 36 x 2. I did not subtract the -6 for the prize money because it says not to.

5 0

3 years ago

Read 2 more answers

True, false, or open 4y+8=6y+3

Soloha48 [4]

Answer:

its open you never know tho

Step-by-step explanation:

3 0

2 years ago