Halley's Comet orbits the sun about every 75 years due to the gravitational force the sun provides.  The distance between Halley's Comet and the sun when the comet is at aphelion (its greatest distance from the sun) is about 4.5 x 1012 m and the distance at perihelion (or closest approach) is about 5.0 x 1010 m. If the mass of the sun is 1.99 x 1030kg what is the comet's acceleration a) at aphelion? b) at perihelion? 


​

We reject the null hypothesis and this shows that there is overwhelming evidence that there is a link between gender groups and dr--unk-driving accidents.

         Men  Female

16-20      150     55

21-30      275    140

31-40      260    140

41-50      220    125

51-60      150     60

61+         45     10

First, we need to find the expected values for each cell. The expected value for a cell is calculated as (row total * column total) / grand total.

Row totals:

16-20: 205

21-30: 415

31-40: 400

41-50: 345

51-60: 210

61+: 55

Column totals:

Men: 1100

Female: 530

Grand total: 1630

Now we can calculate the expected values:

          Men       Female

16-20     (1100*205)/1630  (530*205)/1630

21-30     (1100*415)/1630  (530*415)/1630

31-40     (1100*400)/1630  (530*400)/1630

41-50     (1100*345)/1630  (530*345)/1630

51-60     (1100*210)/1630  (530*210)/1630

61+       (1100*55)/1630   (530*55)/1630

Now, calculate the Chi-Square statistic: Χ² = Σ((observed - expected)² / expected)

Χ² ≈ 19.47

df= 5

p-value is 0.0016

Thus, we reject the null hypothesis and this shows that there is overwhelming evidence that there is a link between gender groups and dr--unk-driving accidents.

Read more about chi-squares here:

https://brainly.com/question/4543358

#SPJ1

Answer:

False.

Explanation:

All relevant school staff must take immunization course annually.

Answer: Time it takes for chemicals to degrade in the environment

Explanation: I got it right so should u pookie

Answer:

Explanation:

Never gonna give you up