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4 years ago

Find the number of different ways that an instructor can choose 6 students from a class of 31 students for a field trip.

Mathematics

1 answer:

kompoz [17]4 years ago

8 0

Answer:

186.

Step-by-step explanation:

By multiplying six by thirty one, you'll get every single way the instructor can choose six students from a class of thirty one students for a field trip.

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Answer:

Step-by-step explanation:

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3 years ago

PLEASE HELP! I NEED TO GET THIS DONE SOON!

tensa zangetsu [6.8K]

Answer:6

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3 years ago

Read 2 more answers

e 400 trials in which the assistant maintained a neutral expression, the driver stopped in 229 out of the 400 trials. Find a 95%

Fittoniya [83]

Answer:

Step-by-step explanation:

n = 400

Proportion p = 229/400= 0.5725

For 95% confidence interval we use Z value as 1.96

Std error = 0.025

margin of error = 1.96*0.025

Confidence interval 95% = 0.5725±Margin of error

= (0.524, 0.621)

b) When smiled x becomes 277

p = 0.6925

Std error = 0.023

Margin of error= 1.96*0.023

Confidence interval = (0.647, 0.738)

Smiling increases the chances of stopping since mean and conidence interval bounds are showing increasing trend.

6 0

3 years ago

What is four and sixty eight thousandths in standard form

qwelly [4]

Standard Form: 4.068

3 0

4 years ago

Use the zero product property to find the solutions to the equation 2x2 + x – 1 = 2.

FromTheMoon [43]

$2 {x}^{2} + x - 1 = 2$

Subtract sides -2

$2 {x}^{2} + x - 1 - 2 = 2 - 2$

$2 {x}^{2} + x - 3 = 0$

$(x - 1)(2x + 3) = 0$

_________________________________

$x - 1 = 0$

$x = 1$

##############################

$2x + 3 = 0$

$x = - \frac{3}{2} \\$

_________________________________

Done♥️♥️♥️♥️♥️

3 0

3 years ago