The travel time of 300 students that journey to the University of Manitoba produced the following descriptive statistics:
mean
= 41.67 minutes
standard deviation = 12.37 minutes
Assuming the distribution is normal, use these sample statistics to answer the following questions about
the travel time to the University of Manitoba. Sketch a normal curve and shade the relevant areas in
each problem:
Question 5: What is the probability that students travelled more than 60 minutes to school? (2 marks)

step-by-step explanation: you take each of the numbers and divide by the amount then you take the range

k

step-by-step explanation:

domit

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!