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galben [10]
1 year ago
7

Lin's grandmother ordered needles that were 0.3125 inches. The pharmacist sent her 0.6875 inches needles. How longer were these

needles than the ones she ordered?
Mathematics
1 answer:
dybincka [34]1 year ago
8 0

Answer:

0.375

Step-by-step explanation:

0.6875-0.3125 = 0.375

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soldier1979 [14.2K]

Answer:

4500000

Step-by-step explanation: Let me know if this helped

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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
What is the 5004300 in standard form
Svet_ta [14]

Answer:

In standard form,

5004300. Five Millon four thousand and three hundred.

6 0
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Read 2 more answers
Please help, I need these done today TT
Nutka1998 [239]

Answer:

Hilda needs 64 ft² of tile

8601 in² will be uncovered post mounting

Step-by-step explanation:

Ar=10•6=60 ft²

At=[4•2]/2=8/2=4 ft²

total area=Ar+At=60+4=64ft²

......

Atv=31•57=1767 in²

Aw=(12•8)•(9•12)=10368 in²

Au=Aw-Atv=10368-1767=8601 in²

7 0
3 years ago
a package shaped like a cube has an edge that is 28 cm long. How much space is available to pack inside your box?
Tema [17]
Answer: 21,952 cm³


Explanation:

Volume = 28 x 28 x 28 = 29 152 cm³

7 0
3 years ago
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