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3 years ago

PLZZ HELP mee................................

Mathematics

2 answers:

topjm [15]3 years ago

8 0

We need to see the answer choices

Nitella [24]3 years ago

7 0

With what ............

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Tina works for a medical technology company in sales. She travels to doctors' offices and offers them a suite of software relate

sesenic [268]

Answer: b. 1.94

Step-by-step explanation:

For binomial distribution model , the formula to find standard deviation is given by :-

$\sigma=\sqrt{np(1-p)}$

Given : The portability that the offices she visits will eventually purchase her product: p=0.25

The number of offices she visited = 20

We assume that the binomial is an appropriate model for the number of offices that make a purchase.

Then, to find the distance of the possible number of sales Tina could observe from the overall mean number of sales we find standard deviation.

$\sigma=\sqrt{np(1-p)}\\\\=\sqrt{20(0.25)(0.75)}\\\\=\sqrt{3.75}=1.9364916731\approx1.94$

Hence, the correct answer is option (b).

5 0

3 years ago

I need help ASAP please

Vilka [71]

Answer:A -3,6

Step-by-step explanation: Substitue the answers in and they work out

3 0

3 years ago

An elementary school is offering 3 language classes: one in Spanish, one in French, and one in German. These classes are open to

Firlakuza [10]

Answer:

0.3689 ; 0.3592 ; 0.6301

Step-by-step explanation:

Spanish = S

French = F

German = G

n(S) = 37 ; n(F) = 38 ; n(G) = 21

n(SnF) = 17 ; n(SnG) = 7 ; n(FnG) = 10

n(SnFnG) = 3

n(SnF) only = 17 - 3 = 14 ;

n(SnG) only = 7 - 3 = 4 ;

n(FnG) only = 10 - 3 = 7

n(S) only = 37 - (14 + 3 + 4) = 16 ;

n(F) only = 38 - (14 + 3 + 7) = 14;

n(G) only = 21 - (7 + 3 + 4) = 7

Probability of not being in any language class :

Number of students not in any class (x)

(16+7+14+14+4+7+3+x) = 103

65 + x = 103

x = 103 - 65

x = 38

Probability, P = required outcome / Total possible outcomes

P(not in any class) = 38 / 103

= 0.3689

2.) probability of taking exactly one class :

Either Spanish or German or French

16/103 + 7/103 + 14/103 = 37/103 = 0.3592

3.) probability that atleast one of two students is taking a language class :

Probability that a student chosen is taking a language class :

Number of students taking a language class / total number of students

= 65 / 103

= 0.631

[P(takes class) * p(does not take class)] + [p(takes class) * p(takes class)]

(0.631 * 0.3689) + (0.631 * 0.631) = 0.6301

7 0

3 years ago

Put the following numbers in order from smallest to biggest: ⅝, ¾, ⅘, ½, ⅔

Rasek [7]

Answer:

.5 .8 .75 .625

Step-by-step explanation:

5/8 = .625 3/4 = .75 4/5 = .8 2/3 = .5

8 0

3 years ago

The Sides of triangle 15ft., 17ft and 13 ft. Find the measure of the angle opposites the longest side. Round your answer to the

dezoksy [38]

Answer:

Your answer rounded to the nearest degree is 47

3 0

2 years ago