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Olenka [21]
2 years ago
5

A survey asked high school students

Mathematics
2 answers:
rewona [7]2 years ago
7 0

Answer:

To do what

Step-by-step explanation:

please mark me as brainlest

Annette [7]2 years ago
6 0

Answer:

a survey asked high school students <u>to pick their favorite subject. </u>

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Big ideas math 16.7 puzzle time what happened when the rubber duckie fell into the bathtub answers?
RoseWind [281]

Answer:

If the bathtub was full it made a splash and got wet if the bathtub was empty if  hit the bottom and bounced

Step-by-step explanation:

7 0
3 years ago
A certain standardized test's math scores have a bell-shaped distribution with a mean of 530 and a standard deviation of 119. Co
kumpel [21]

Answer:

a) 68.2%

b) 31.8%

c) 2.3%

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 530

Standard Deviation, σ = 119

We are given that the distribution of math scores is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

a) P(test scores is between 411 and 649)

P(411 \leq x \leq 649)\\\\= P(\displaystyle\frac{411 - 530}{119} \leq z \leq \displaystyle\frac{649-530}{119})\\\\= P(-1 \leq z \leq 1)\\\\= P(z \leq 1) - P(z < -1)\\= 0.841 - 0.159 = 0.682 = 68.2\%

b) P(scores is less than 411 or greater than 649)

P(x < 411 < x, x > 649)\\=1 = P(411 \leq x \leq 649)\\=1 - 0.682\\=0.318 = 31.8\%

c) P(score greater than 768)

P(x > 768)

P( x > 768) = P( z > \displaystyle\frac{768 - 530}{119}) = P(z > 2)

= 1 - P(z \leq 2)

Calculation the value from standard normal z table, we have,  

P(x > 768) = 1 -0.977 = 0.023 = 2.3\%

5 0
3 years ago
Which number is represented by "C" on the number line? A) 5 B) 6 C) 7 D) 8
Misha Larkins [42]
Addition information need it like the picture
8 0
3 years ago
I need this done fast, it's due today!
Bogdan [553]

Answer:

(0, 50) (25, 57.5) (50, 122.5) (75, 195) (100, 275)

Step-by-step explanation:

We know that he earns 30% percent of the money made on sales, plus $50 a week. We know that he starts off with 50, because that's how much he made by working that week. To figure out how much money he made off of each one, we have to calculate 30% of the sale, and add that to the total amount of money he has made up to that point. I hope this helps :)

8 0
3 years ago
Read 2 more answers
How can I write 2,351 and standard form
Ludmilka [50]
Isn't 2,351 the standardized form already?
there is word form: two thousand, three hundred fifty one
there is expanded form: (2* 1000)+ (3*100)+ (5* 10)+ (1* 1)= 2,351
3 0
3 years ago
Read 2 more answers
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