Find where to buy the TI-84 Plus CE Python graphing calculator in a variety of bold, fun colors.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Learn about the math and science behind what students are into, from art to fashion and more.
Enhance your teaching with a hands-on learning experience.
We are here to help with distance learning resources for schools and districts.
Update OS, transfer files andtake screen captures for yourTI-Nspire™ CX II graphing calculator.
Students explore the area under the normal curve between various x-values and use a model to find what percent of the area lies within 1, 2, and 3 standard deviations of the mean. weights. Percentiles are defined and calculated.
In Problem 1 and 2, students explore the normal curve. Students have a discussion about a bell curve which approximates for the binomial distribution. Students will see that the curve is symmetrical and extends to infinity in both directions. Its height is greatest in the center and decreases to the right and left, approaching (but never quite reaching) zero.
Students manipulate the shape of a normal curve by controlling two parameters: the mean, which controls the location of the hump of the curve, and the standard deviation, which controls whether the bell is broad and flat or narrow and tall. Students will see that no matter what the mean and standard deviation, the total area under every normal curve is 1.
Problem 3 allows students to investigate an application of the normal distribution. The problem produces a real-life variable that is normally distributed. It describes the weight of each orange in a farmer’s crop.
© Copyright 1995-2021 Texas Instruments Incorporated. All rights reserved.