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Veronika [31]
3 years ago
12

A women standing on a cliff at the edge of the ocean spots a raft. Her eye level is 65 feet above sea level and the angle of dep

ression is 9° . How far is the raft from the base of the cliff?
Mathematics
1 answer:
Aliun [14]3 years ago
4 0

Answer:

the answer is C

Step-by-step explanation:

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Hurry please!!Gregory collected two random samples of 100 Woman regarding woman's color bag
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More women prefer black bags than red or blue bags. ( i hoped this help, i took this test or had a similar question and that is what i put)
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2 years ago
Loan
diamong [38]
B

Explanation: I guessed and it was right
5 0
3 years ago
Chick-fil-a found out their most popular items in their combo meals . They found that the Original Chicken Sandwich was ordered
Semenov [28]

Answer:

13/20 probability

Step-by-step explanation:

it starts out as 65/100 then you simplify to get 13/20

hope this helps btw chick fil a is the best!

7 0
2 years ago
Klay is driving to visit his family in another town. It is 386 miles. If his car will go 18 miles per gallon, how many gallons w
Alexus [3.1K]
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7 0
3 years ago
Which of the following is not a property of a chi-square distribution?
laiz [17]

Answer:

c) Is not a property (hence (d) is not either)

Step-by-step explanation:

Remember that the chi square distribution with k degrees of freedom has this formula

\chi_k^2 = \matchal{N}_1^2 +  \matchal{N}_2^2 + ... + \, \matchal{N}_{k-1}^2 +  \matchal{N}_k^2

Where N₁ , N₂m .... N_k are independent random variables with standard normal distribution. Since it is a sum of squares, then the chi square distribution cant take negative values, thus (c) is not true as property. Therefore, (d) cant be true either.

Since the chi square is a sum of squares of a symmetrical random variable, it is skewed to the right (values with big absolute value, either positive or negative, will represent a big weight for the graph that is not compensated with values near 0). This shows that (a) is true

The more degrees of freedom the chi square has, the less skewed to the right it is, up to the point of being almost symmetrical for high values of k. In fact, the Central Limit Theorem states that a chi sqare with n degrees of freedom, with n big, will have a distribution approximate to a Normal distribution, therefore, it is not very skewed for high values of n. As a conclusion, the shape of the distribution changes when the degrees of freedom increase, because the distribution is more symmetrical the higher the degrees of freedom are. Thus, (b) is true.

6 0
3 years ago
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