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Blababa [14]
3 years ago
8

PLEASE HELP!

Mathematics
2 answers:
Murljashka [212]3 years ago
6 0

Answer: i think its b

Step-by-step explanation:

Reil [10]3 years ago
5 0

Answer is B

Step-by-step explanation:

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As an estimation we are told £3 is €4. Convert £34.50 to euros.
Andre45 [30]

Answer:

46 euros

Step-by-step explanation:

£30 = 40 euros

4.50 = £3 and £1.50

£3 = 4 euros

1.50 = 2 euros because you half the 4 euros because half of 3 is 1.50

hope this helps if not sorry  

3 0
3 years ago
Read 2 more answers
Suppose that each observation in a random sample of 100 fatal bicycle accidents in 2015 was classified according to the day of t
liraira [26]

Answer:

The calculated χ² =  0.57   does not fall in the critical region χ² ≥  12.59  so we fail to reject the null hypothesis and conclude the proportion of fatal bicycle accidents in 2015 was the same for all days of the week.

Step-by-step explanation:

1) We set up our null and alternative hypothesis as

H0:  proportion of fatal bicycle accidents in 2015 was the same for all days of the week

against the claim

Ha:  proportion of fatal bicycle accidents in 2015 was not the same for all days of the week

2) the significance level alpha is set at 0.05

3) the test statistic under H0 is

χ²= ∑ (ni - npi)²/ npi

which has an approximate chi square distribution with ( n-1)=7-1=  6 d.f

4) The critical region is χ² ≥ χ² (0.05)6 = 12.59

5) Calculations:

χ²= ∑ (16- 14.28)²/14.28 + (12- 14.28)²/14.28 + (12- 14.28)²/14.28 + (13- 14.28)²/14.28 + (14- 14.28)²/14.28 + (15- 14.28)²/14.28 + (18- 14.28)²/14.28

χ²= 1/14.28 [ 2.938+ 5.1984 +5.1984+1.6384+0.0784 +1.6384+13.84]

χ²= 1/14.28[8.1364]

χ²= 0.569= 0.57

6) Conclusion:

The calculated χ² =  0.57   does not fall in the critical region χ² ≥  12.59  so we fail to reject the null hypothesis and conclude the proportion of fatal bicycle accidents in 2015 was the same for all days of the week.

b.<u> It is r</u>easonable to conclude that the proportion of fatal bicycle accidents in 2015 was the same for all days of the week

6 0
3 years ago
A dog eats 0.1 lb of food each day how much does he eat in 10 days
Andrei [34K]
Since the dog eats 0.1 pounds of food each day for ten days, the equation to solve this is 0.1 times 10.

0.1 *10 = 1

The dog eats 1 pound of food in 10 days.
6 0
3 years ago
The radioisotope Phosphorus-32 is used in leukemia therapy. The half-life of this isotope is 14.26 days.
disa [49]
B is the best answer that i can dee
8 0
4 years ago
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greg is designing the clock face for a homemade clock. using the center of the clock face as the origin, he places the label 12
Serjik [45]
I apologized that you have not been helped yet, But the answer is (0,-5). Again, I am so sorry that you were not helped properly :)
8 0
3 years ago
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