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3 years ago

True or False. In lexicographical ordering, rst is listed the same as str.

1 answer:

6 0

The lexicographic order is used in mathematics to order alphabetical strings based on the order assigned to the alphabet, this is mainly used in dictionaries and encyclopedias, but it has many other applications, including computer science.

Thus, in the same way that the word as and the word "net" goes before in a dictionary that the word "ten", in lexicographic order "RST" will have less value than "STR"

Answer

False, in the lexicographic order, "rst" does not appear the same as "str".

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Locate and label the following fraction on the number line 1/2 4/2 5/2

LuckyWell [14K]

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3 years ago

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lozanna [386]

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2 years ago

The following data are from a completely randomized design.

Mila [183]

Answer:

a)1488

b) 744

c) 2030

d) 135.333

e) see attached table

f) There is sufficient evidence to reject the claim of equal means.

Step-by-step explanation:

a) Determine the value of total-group variability SS(tot):

SS(tot)=∑x^2(tot)-(x(tot))^2/N=376766-2592^2/18 ≅ 3518

Determine the value of the sum of squares between groups:

SS(bet) = ∑_(all groups) (∑x_i)^2/n_i -(∑x(tot))^2/N

=936^2/6+852^2/6+804^2/6-2592^2/6≅ 1488

b) d.f(BET) is the number of groups k decreased by 1.

d.f(BET) = k - 1= 3-1 = 2

MS(BET) is SS(BET) divided by d.f(BET):

MS(BET)=SS(BET)/ d.f(BET)

=1488/2

=744

c) The value of the sum of squares within groups (due to error) is then the value of the total-group variability decreased by the value of the sum of squares between groups (Note: using this calculation you then immediately obtain that the sum SS(tot) =SS(bet)+ SS(W) holds):

SS(W) = SS(tot) - SS(bet) = 3518 - 1488 = 2030

d) d.f.w is the total sample size decreased by the number of groups k.

d.f.w = N — k = 18 — 3 = 15

MSw is SSw divided by d.f.w:

MSw =SSw/d.f.w=2030/15=135.333

e) see attached table

f) The value of the test statistic F is then MS(BET) divided by MSw:

F=MS(BET)/MSw=744/135.3333≅5.5

The degrees of freedom are the same as those for between groups and within groups:

d.f.N=d.f(BET)=2

d.f.D=d.f.w=15

The P-value is the probability of obtaining the value of the test statistic, or a value more extreme. The P-value is the number (or interval) in the column title of Table 4 containing the F-value in the row dfn = 2 and dfd = 15:

0.01<P<0.025

If the P-value is less than the significance level, reject the null hypothesis.

P<0.05==> Reject H_o

There is sufficient evidence to reject the claim of equal means.

7 0

3 years ago

Find the equation of the exponential function represented by the table below:

Hoochie [10]

Answer:

$f(x)=5(4)^x$

Step-by-step explanation:

The exponential function is $f(x)=ab^x$ . $a$ is the initial value of the function, or the y-value when x=0. In this case, $a$ =5. If we enter that into the equation: