learning about common biases and strategies to mitigate their influence

In Stock

Size Guide

$34.99 $29.99

Shipping and Returns Policy

One of the basic tenets of statistics that every student learns in about the second week of intro stats is that in a skewed distribution, the mean is closer ... Jul 8, 2021 ... When data are skewed left, the mean is smaller than the median. If the data are symmetric, they have about the same shape on either side of the middle. Apr 12, 2021 ... Skewed Distributions. A symmetrical distribution is a distribution where the mean, median and mode are the same. A skewed distribution, on the ... ... is too peaked or flat compared to a normal distribution. Positive kurtosis means a more peaked distribution, while negative kurtosis means a flatter one. A ... Apr 14, 2025 ... Skewness refers to the degree of symmetry, or more precisely, the degree of lack of symmetry. Distributions, or data sets, are said to be ... The histogram displays a symmetrical distribution of data. A distribution is symmetrical if a vertical line can be drawn at some point in the histogram such ... Ssk values represent the degree of bias of the roughness shape (asperity). Ssk<0: Height distribution is skewed above the mean plane. Apr 30, 2020 ... The PI is used for "hash distribution" of the data so you should pick a column or set of columns that will give fairly even distribution; it ... Aug 31, 2022 ... The best practice is to understand what you are exposing yourself to in a given transaction and disregard the nomenclature. Sep 2, 2021 ... Sometimes, the mean is also indicated by a dot or a cross on the box plot. ... The distribution is positively skewed, because the whisker ...
  • Next Day Delivery by USPS Find out more

    Order by 9pm (excludes Public holidays)

    $11.99

  • Express Delivery - 48 Hours Find out more

    Order by 9pm (excludes Public holidays)

    $9.99

  • Standard Delivery $6.99 Find out more

    Delivered within 3 - 7 days (excludes Public holidays).

  • Store Delivery $6.99 Find out more

    Delivered to your chosen store within 3-7 days

    Spend over $400 (excluding delivery charge) to get a $20 voucher to spend in-store
  • International Delivery Find out more

    International Delivery is available for this product. The cost and delivery time depend on the country.

You can now return your online order in a few easy steps. Select your preferred tracked returns service. We have print at home, paperless and collection options available.

You have 28 days to return your order from the date it’s delivered. Exclusions apply.

View our full Returns and Exchanges information.

Our extended Christmas returns policy runs from 28th October until 5th January 2025, all items purchased online during this time can be returned for a full refund.

No reviews yet. Only logged in customers who have purchased this product may leave a review.