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2 years ago

in one week, 215,328 people visit the Grand Canyon. How many hundreds of people visit the canyon in that week?

Mathematics

2 answers:

patriot [66]2 years ago

4 0

Answer:

2,153 hundreds of people.

Step-by-step explanation:

We have been given that in one week, 215,328 people visit the Grand Canyon. We are asked to find the hundreds of people that visited the canyon in that week.

First of all, we will round 215,328 to nearest hundred.

Since the tens value is less than 5, so we will round down to nearest hundred as:

$215,328\approx 215,300$

Now, we will divide 215,300 by 100 to find number of people that visited canyon in the week.

$\frac{215,300}{100}=2,153$

Therefore, 2,153 hundreds of people visited the canyon in the given week.

BARSIC [14]2 years ago

3 0

2153.28 hundreds to be exact or, 2153.

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Vikki [24]

Answer:

21.3%

Step-by-step explanation:

Given that:

Money spent by Jodie for buying English reading books = 25% lesser than that of Claudia

and

Money spent by Gianna is 9% lesser than that of Claudia.

To find:

By what percent, Gianna spent more than Jodie ?

Solution:

Let the money spent by Claudia on her English books = 100

Now, as per question statement:

Money spent by Jodie = 100 - $\frac{9}{100}\times 100$ = 75

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Now, to find the answer:

$\dfrac{\text{Difference between money spent by Gianna and Jodie}}{\text{Money spent by Jodie}}\times 100$

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4 0

2 years ago

Test the claim that the proportion of people who own cats is significantly different than 80% at the 0.2 significance level. The

sattari [20]

Answer:

C. H0 : p = 0.8 H 1 : p ≠ 0.8

The test is:_____.

c. two-tailed

The test statistic is:______p ± z (base alpha by 2) $\sqrt{\frac{pq}{n} }$

The p-value is:_____. 0.09887

Based on this we:_____.

B. Reject the null hypothesis.

Step-by-step explanation:

We formulate null and alternative hypotheses as proportion of people who own cats is significantly different than 80%.

H0 : p = 0.8 H 1 : p ≠ 0.8

The alternative hypothesis H1 is that the 80% of the proportion is different and null hypothesis is , it is same.

For a two tailed test for significance level = 0.2 we have critical value ± 1.28.

We have alpha equal to 0.2 for a two tailed test . We divided alpha with 2 to get the answer for a two tailed test. When divided by two it gives 0.1 and the corresponding value is ± 1.28

The test statistic is

p ± z (base alpha by 2) $\sqrt{\frac{pq}{n} }$

Where p = 0.8 , q = 1-p= 1-0.8= 0.2

n= 200

Putting the values

0.8 ± 1.28 $\sqrt{\frac{0.8*0.2}{200} }$