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Vesnalui [34]
3 years ago
9

How many permutations five-letters long can be formed from the letters HISTOGRAM?

Mathematics
1 answer:
xeze [42]3 years ago
7 0

Answer:

104 different words

Step-by-step explanation

1) imago 2). simar 3). hoars 4). hairs 5). stair 6). sigma 7). stoai 8). staig 9). harms 10). harts 11). horas 12). tarsi 13). smart 14). hosta 15). sight 16). smith 17). ihram 18). hoist 19). sitar 20). horst 21). iotas 22). short 23). moats 24). moira 25). moist 26). ratio 27). moras 28). morts 29). ragis 30). moths 31). ostia 32). omits 33). oaths 34). ohias 35). ogams 36). ogham 37). ratos 38). right 39). mirth 40). shoat 41). shirt 42). magot 43). mairs 44). maist 45). saith 46). marsh 47). marts 48). rotis 49). maths 50). roast 51). roams 52). riots 53). might 54). rotas 55). grots 56). toras 57). trams 58). trash 59). trigo 60). ghost 61). giros 62). girsh 63). tharm 64). girth 65). girts 66). gismo 67). airts 68). taros 69). ghast 70). gator 71). amigo 72). torah 73). astir 74). torsi 75). argot 76). atoms 77). togas 78). gaits 79). amort 80). tiros 81). tragi 82). garth 83). amirs 84). airth 85). ghats 86). stoma 87). stria 88). trigs 89). trios 90). agios 91). trois 92). grist 93). agist 94). grith 95). grits 96). agism 97). groat 98). storm 99). griot 100). grams 101). goats 102). tahrs 103). tamis 104). trims

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The U.S. Center for Disease Control reports that the mean life expectancy was 47.6 years for whites born in 1900 and 33.0 years
inn [45]

Answer:

b. The null and alternative hypothesis are:

H_0: \mu_1-\mu_2=0\\\\H_a:\mu_1-\mu_2\neq 0

c. Student's t distribution, as it is a two-sample test for the difference between means.

d. Test statistic t = 5.42.

P-value = 0

e. They appear to be significantly different, as the sample data gives strong evidence that the difference is greater than 0.

Step-by-step explanation:

This is a hypothesis test for the difference between populations means.

The claim is that the mean life spans in the county is significantly different for whites and nonwhites.

Then, the null and alternative hypothesis are:

H_0: \mu_1-\mu_2=0\\\\H_a:\mu_1-\mu_2\neq 0

The significance level is 0.05.

The sample 1 (white), of size n1=124 has a mean of 45.3 and a standard deviation of 12.7.

The sample 2 (non-white), of size n2=82 has a mean of 34.1 and a standard deviation of 15.6.

The difference between sample means is Md=11.2.

M_d=M_1-M_2=45.3-34.1=11.2

The estimated standard error of the difference between means is computed using the formula:

s_{M_d}=\sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma_2^2}{n_2}}=\sqrt{\dfrac{12.7^2}{124}+\dfrac{15.6^2}{82}}\\\\\\s_{M_d}=\sqrt{1.301+2.968}=\sqrt{4.269}=2.066

Then, we can calculate the t-statistic as:

t=\dfrac{M_d-(\mu_1-\mu_2)}{s_{M_d}}=\dfrac{11.2-0}{2.066}=\dfrac{11.2}{2.066}=5.42

The degrees of freedom for this test are:

df=n_1+n_2-2=124+82-2=204

This test is a two-tailed test, with 204 degrees of freedom and t=5.42, so the P-value for this test is calculated as (using a t-table):

\text{P-value}=2\cdot P(t>5.42)=0.0000002

As the P-value (0.0000002) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the mean life spans in the county is significantly different for whites and nonwhites.

4 0
3 years ago
Robin was just hired at Groceries & More as a cashler. They pay her $12 an hour. She works 20 hours a week and is going to s
Lostsunrise [7]

Answer:

5 weeks

Step-by-step explanation:

We know that she works at a rate of $12 an hour, she also works 20 hours a week.

The total amount she makes per week is $240 (12 x 20). However, that is without deductions. We have to subtract $34 from the $240.

$240 - $34 = $206.

$206 is the amount she makes in a week and she wants to save $950. How many weeks does she have to save? Well, let's divide.

$950 / $206 = 4.6 weeks. However, if we have to round up to 5 weeks.

4 0
2 years ago
What is the answer to this?
ra1l [238]
The answer to your question is = 184
5 0
3 years ago
Read 2 more answers
What is 22 nickels equal to?
Viktor [21]
$1.10 is your answer
4 0
3 years ago
Row counted a total of 40 white cars and yellow cars there were nine times as many white cars as yellow cars how many white cars
Tju [1.3M]
You multiply 40x9 and you should get 360
8 0
3 years ago
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